結果
| 問題 | No.3058 M + D Problem |
| ユーザー |
 shun_skycrew
|
| 提出日時 | 2020-04-01 21:38:46 |
| 言語 | Java21 (openjdk 21) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 27,059 bytes |
| コンパイル時間 | 5,202 ms |
| コンパイル使用メモリ | 96,696 KB |
| 実行使用メモリ | 51,812 KB |
| 最終ジャッジ日時 | 2024-06-27 09:57:35 |
| 合計ジャッジ時間 | 6,103 ms |
|
ジャッジサーバーID （参考情報） |
judge5 / judge2 |
（要ログイン）
テストケース
テストケース表示| 入力 | 結果 | 実行時間 実行使用メモリ |
|---|---|---|
| testcase_00 | AC | 73 ms
51,300 KB |
| testcase_01 | AC | 74 ms
51,332 KB |
| testcase_02 | AC | 73 ms
51,680 KB |
| testcase_03 | AC | 73 ms
51,580 KB |
| testcase_04 | WA | - |
| testcase_05 | AC | 75 ms
51,636 KB |
| testcase_06 | AC | 75 ms
51,484 KB |
| testcase_07 | AC | 74 ms
51,700 KB |
| testcase_08 | AC | 74 ms
51,712 KB |
| testcase_09 | AC | 75 ms
51,676 KB |
| testcase_10 | AC | 75 ms
51,812 KB |
| testcase_11 | AC | 74 ms
51,708 KB |
| testcase_12 | AC | 77 ms
51,284 KB |
| testcase_13 | AC | 74 ms
51,444 KB |
| testcase_14 | AC | 73 ms
51,680 KB |
ソースコード
import java.util.*;
import java.io.*;
import java.math.*;
public class Main {
static boolean DEBUG;
public static void main(String[] args) {
DEBUG = args.length > 0 && args[0].equals("-DEBUG");
Solver solver = new Solver();
solver.solve();
solver.exit();
}
static class FastScanner {
private final InputStream in = System.in;
private final byte[] buffer = new byte[1024];
private int ptr = 0;
private int buflen = 0;
private boolean hasNextByte() {
if(ptr < buflen) {
return true;
}else{
ptr = 0;
try {
buflen = in.read(buffer);
} catch (IOException e) {
e.printStackTrace();
}
if(buflen <= 0) {
return false;
}
}
return true;
}
private int readByte() { if(hasNextByte()) return buffer[ptr++]; else return -1;}
private boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
private void skipUnprintable() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++;}
public boolean hasNext() { skipUnprintable(); return hasNextByte();}
public String next() {
if(!hasNext()) throw new NoSuchElementException();
StringBuilder sb = new StringBuilder();
int b = readByte();
while(isPrintableChar(b)) {
sb.appendCodePoint(b);
b = readByte();
}
return sb.toString();
}
public long nextLong() {
if(!hasNext()) throw new NoSuchElementException();
long n = 0;
boolean minus = false;
int b = readByte();
if(b == '-') {
minus = true;
b = readByte();
}
if(b < '0' || '9' < b) {
throw new NumberFormatException();
}
while(true){
if('0' <= b && b <= '9') {
n *= 10;
n += b - '0';
}else if(b == -1 || !isPrintableChar(b)){
return minus ? -n : n;
}else{
throw new NumberFormatException();
}
b = readByte();
}
}
}
static class Solver {
FastScanner sc = new FastScanner();
public Solver() { }
String ns() { return sc.next(); }
String[] ns(int n) {
String a[] = new String[n];
for(int i = 0; i < n; i ++) { a[i] = ns(); }
return a;
}
String[][] ns(int n, int m) {
String a[][] = new String[n][m];
for(int i = 0; i < n; i ++) { a[i] = ns(m); }
return a;
}
char[] nc(int n) {
String str = ns();
char a[] = new char[max(n, str.length())];
for(int i = 0; i < str.length(); i ++) { a[i] = str.charAt(i); }
return a;
}
char[][] nc(int n, int m) {
char a[][] = new char[n][m];
for(int i = 0; i < n; i ++) { a[i] = nc(m); }
return a;
}
boolean[] nb(int n, char t) {
char c[] = nc(-1);
if(n < 0) n = c.length;
boolean a[] = new boolean[n];
for(int i = 0; i < n; i ++) { a[i] = c[i] == t; }
return a;
}
boolean[][] nb(int n, int m, char t) {
boolean a[][] = new boolean[n][m];
for(int i = 0; i < n; i ++) { a[i] = nb(m, t); }
return a;
}
int ni() { return (int)sc.nextLong(); }
int[] ni(int n) {
int a[] = new int[n];
for(int i = 0; i < n; i ++) { a[i] = ni(); }
return a;
}
int[][] ni(int n, int m) {
int a[][] = new int[n][m];
for(int i = 0; i < n; i ++) { a[i] = ni(m); }
return a;
}
long nl() { return sc.nextLong(); }
long[] nl(int n) {
long a[] = new long[n];
for(int i = 0; i < n; i ++) { a[i] = nl(); }
return a;
}
long[][] nl(int n, int m) {
long a[][] = new long[n][m];
for(int i = 0; i < n; i ++) { a[i] = nl(m); }
return a;
}
double nd() { return Double.parseDouble(sc.next()); }
double[] nd(int n) {
double a[] = new double[n];
for(int i = 0; i < n; i ++) { a[i] = nd(); }
return a;
}
double[][] nd(int n, int m) {
double a[][] = new double[n][m];
for(int i = 0; i < n; i ++) { a[i] = nd(m); }
return a;
}
PrintWriter out = new PrintWriter(System.out);
PrintWriter err = new PrintWriter(System.err);
void prt() { out.print(""); }
<T> void prt(T a) { out.print(a); }
void prtln() { out.println(""); }
<T> void prtln(T a) { out.println(a); }
void prtln(int... a) {
StringBuilder sb = new StringBuilder();
for(int element : a){ sb.append(element+" "); }
prtln(sb.toString().trim());
}
void prtln(long... a) {
StringBuilder sb = new StringBuilder();
for(long element : a){ sb.append(element+" "); }
prtln(sb.toString().trim());
}
void prtln(double... a) {
StringBuilder sb = new StringBuilder();
for(double element : a){ sb.append(element+" "); }
prtln(sb.toString().trim());
}
void prtln(String... a) {
StringBuilder sb = new StringBuilder();
for(String element : a){ sb.append(element+" "); }
prtln(sb.toString().trim());
}
void prtln(char... a) {
StringBuilder sb = new StringBuilder();
for(char element : a){ sb.append(element); }
prtln(sb.toString().trim());
}
void prtln(int[][] a) { for(int[] element : a){ prtln(element); } }
void prtln(long[][] a) { for(long[] element : a){ prtln(element); } }
void prtln(double[][] a) { for(double[] element : a){ prtln(element); } }
void prtln(String[][] a) { for(String[] element : a){ prtln(element); } }
void prtln(char[][] a) { for(char[] element : a){ prtln(element); } }
String errconvert(int a) { return isINF(a) ? "_" : String.valueOf(a); }
String errconvert(long a) { return isINF(a) ? "_" : String.valueOf(a); }
void errprt(int a) { if(DEBUG) { err.print(errconvert(a)); } }
void errprt(long a) { if(DEBUG) { err.print(errconvert(a)); } }
void errprt() { if(DEBUG) { err.print(""); } }
<T> void errprt(T a) { if(DEBUG) { err.print(a); } }
void errprt(boolean a) { if(DEBUG) { errprt(a ? "#" : "."); } }
void errprtln() { if(DEBUG) { err.println(""); } }
void errprtln(int a) { if(DEBUG) { err.println(errconvert(a)); } }
void errprtln(long a) { if(DEBUG) { err.println(errconvert(a)); } }
<T> void errprtln(T a) { if(DEBUG) { err.println(a); } }
void errprtln(boolean a) { if(DEBUG) { errprtln(a ? "#" : "."); } }
void errprtln(int... a) {
if(DEBUG) {
StringBuilder sb = new StringBuilder();
for(int element : a){ sb.append(errconvert(element)+" "); }
errprtln(sb.toString().trim());
}
}
void errprtln(long... a) {
if(DEBUG) {
StringBuilder sb = new StringBuilder();
for(long element : a){ sb.append(errconvert(element)+" "); }
errprtln(sb.toString().trim());
}
}
void errprtln(double... a) {
if(DEBUG) {
StringBuilder sb = new StringBuilder();
for(double element : a){ sb.append(element+" "); }
errprtln(sb.toString().trim());
}
}
void errprtln(String... a) {
if(DEBUG) {
StringBuilder sb = new StringBuilder();
for(String element : a){ sb.append(element+" "); }
errprtln(sb.toString().trim());
}
}
void errprtln(char... a) {
if(DEBUG) {
StringBuilder sb = new StringBuilder();
for(char element : a){ sb.append(element); }
errprtln(sb.toString().trim());
}
}
void errprtln(boolean... a) {
if(DEBUG) {
StringBuilder sb = new StringBuilder();
for(boolean element : a){ sb.append((element ? "#" : ".")+" "); }
errprtln(sb.toString().trim());
}
}
void errprtln(int[][] a) { if(DEBUG) { for(int[] element : a){ errprtln(element); } } }
void errprtln(long[][] a) { if(DEBUG) { for(long[] element : a){ errprtln(element); } } }
void errprtln(double[][] a) { if(DEBUG) { for(double[] element : a){ errprtln(element); } } }
void errprtln(String[][] a) { if(DEBUG) { for(String[] element : a){ errprtln(element); } } }
void errprtln(char[][] a) { if(DEBUG) { for(char[] element : a){ errprtln(element); } } }
void errprtln(boolean[][] a) { if(DEBUG) { for(boolean[] element : a){ errprtln(element); } } }
void reply(boolean b) { prtln(b ? "Yes" : "No"); }
void REPLY(boolean b) { prtln(b ? "YES" : "NO"); }
void flush() { out.flush(); if(DEBUG) { err.flush(); } }
void exit() { flush(); System.exit(0); }
void assertion(boolean b) { if(!b) throw new AssertionError(); }
int min(int a, int b) { return Math.min(a, b); }
long min(long a, long b) { return Math.min(a, b); }
double min(double a, double b) { return Math.min(a, b); }
int min(int... x) {
int min = x[0];
for(int val : x) { min = min(min, val); }
return min;
}
long min(long... x) {
long min = x[0];
for(long val : x) { min = min(min, val); }
return min;
}
double min(double... x) {
double min = x[0];
for(double val : x) { min = min(min, val); }
return min;
}
int max(int a, int b) { return Math.max(a, b); }
long max(long a, long b) { return Math.max(a, b); }
double max(double a, double b) { return Math.max(a, b); }
int max(int... x) {
int max = x[0];
for(int val : x) { max = max(max, val); }
return max;
}
long max(long... x) {
long max = x[0];
for(long val : x) { max = max(max, val); }
return max;
}
double max(double... x) {
double max = x[0];
for(double val : x) { max = max(max, val); }
return max;
}
long sum(int... a) {
long sum = 0;
for(int element : a) { sum += element; }
return sum;
}
long sum(long... a) {
long sum = 0;
for(long element : a) { sum += element; }
return sum;
}
double sum(double... a) {
double sum = 0;
for(double element : a) { sum += element; }
return sum;
}
long[] sums(int[] a) {
long sum[] = new long[a.length + 1];
sum[0] = 0;
for(int i = 0; i < a.length; i ++) { sum[i + 1] = sum[i] + a[i]; }
return sum;
}
long[] sums(long[] a) {
long sum[] = new long[a.length + 1];
sum[0] = 0;
for(int i = 0; i < a.length; i ++) { sum[i + 1] = sum[i] + a[i]; }
return sum;
}
double[] sums(double[] a) {
double sum[] = new double[a.length + 1];
sum[0] = 0;
for(int i = 0; i < a.length; i ++) { sum[i + 1] = sum[i] + a[i]; }
return sum;
}
int abs(int x) { return x >= 0 ? x : - x; }
long abs(long x) { return x >= 0 ? x : - x; }
double abs(double x) { return x >= 0 ? x : - x; }
int signum(int x) { return x > 0 ? 1 : x < 0 ? -1 : 0; }
int signum(long x) { return x > 0 ? 1 : x < 0 ? -1 : 0; }
int signum(double x) { return x > 0 ? 1 : x < 0 ? -1 : 0; }
long round(double x) { return Math.round(x); }
long floor(double x) { return (long)Math.floor(x); }
int divfloor(int a, int b) { return signum(a) == signum(b) ? a / b : - divceil(abs(a), abs(b)); }
long divfloor(long a, long b) { return signum(a) == signum(b) ? a / b : - divceil(abs(a), abs(b)); }
long ceil(double x) { return (long)Math.ceil(x); }
int divceil(int a, int b) { return a >= 0 && b > 0 ? (a + b - 1) / b
: a < 0 && b < 0 ? divceil(abs(a), abs(b))
: - divfloor(abs(a), abs(b)); }
long divceil(long a, long b) { return a >= 0 && b > 0 ? (a + b - 1) / b
: a < 0 && b < 0 ? divceil(abs(a), abs(b))
: - divfloor(abs(a), abs(b)); }
double sqrt(int x) { return Math.sqrt((double)x); }
double sqrt(long x) { return Math.sqrt((double)x); }
double sqrt(double x) { return Math.sqrt(x); }
double pow(double x, double y) { return Math.pow(x, y); }
long pow(long x, long y) {
if(y == 0) { return 1;
}else {
long tmp = pow(x, y / 2);
return tmp * tmp * (y % 2 == 0 ? 1 : x);
}
}
int gcd(int a, int b) { return b == 0 ? a : gcd(b, a % b); }
long gcd(long a, long b) { return b == 0 ? a : gcd(b, a % b); }
long lcm(long a, long b) { return a / gcd(a, b) * b; }
int gcd(int[] array) {
int gcd = 0;
for(int i = 0; i < array.length; i ++) { gcd = gcd(gcd, array[i]); }
return gcd;
}
long gcd(long[] array) {
long gcd = 0;
for(int i = 0; i < array.length; i ++) { gcd = gcd(gcd, array[i]); }
return gcd;
}
int upperToInt(char a) { return a - 'A'; }
int lowerToInt(char a) { return a - 'a'; }
int numToInt(char a) { return a - '0'; }
int charToInt(char a) { return a >= 'a' ? lowerToInt(a) : a >= 'A' ? upperToInt(a) : numToInt(a); }
char intToUpper(int a) { return (char)(a + 'A'); }
char intToLower(int a) { return (char)(a + 'a'); }
char intToNum(int a) { return (char)(a + '0'); }
int[] charToInt(char[] a) {
int array[] = new int[a.length];
for(int i = 0; i < a.length; i ++) { array[i] = charToInt(a[i]); }
return array;
}
long[] div(long a) {
List<Long> divList = new ArrayList<Long>();
for(long i = 1; i * i <= a; i ++) {
if(a % i == 0) {
divList.add(i);
if(i * i != a) { divList.add(a / i); };
}
}
long div[] = new long[divList.size()];
for(int i = 0; i < divList.size(); i ++) { div[i] = divList.get(i); }
return div;
}
long[][] factor(long a) {
List<Long> factorList = new ArrayList<Long>();
List<Long> degreeList = new ArrayList<Long>();
for(long i = 2; i * i <= a; i ++) {
if(a % i == 0) {
long count = 0;
while(a % i == 0) {
a /= i;
count ++;
}
factorList.add(i);
degreeList.add(count);
}
}
if(a > 1) {
factorList.add(a);
degreeList.add(1L);
}
long factor[][] = new long[factorList.size()][2];
for(int i = 0; i < factorList.size(); i ++) {
factor[i][0] = factorList.get(i);
factor[i][1] = degreeList.get(i);
}
Arrays.sort(factor, (sort1, sort2) -> Long.compare(sort1[0], sort2[0]));
return factor;
}
boolean isPrime(long x) {
boolean ok = x > 1;
for(long i = 2; i * i <= x; i ++) {
ok &= x % i != 0;
if(!ok) return ok;
}
return ok;
}
boolean[] prime(int num) {
boolean prime[] = new boolean[num];
fill(prime, true);
prime[0] = false;
prime[1] = false;
for(int i = 2; i < num; i ++) {
if(prime[i]) {
for(int j = 2; i * j < num; j ++) {
prime[i * j] = false;
}
}
}
return prime;
}
long[][] countElements(long[] a, boolean sort) {
int len = a.length;
long array[] = new long[len];
for(int i = 0; i < len; i ++) {
array[i] = a[i];
}
if(sort) { Arrays.sort(array); }
List<Long> elem = new ArrayList<Long>();
List<Long> cnt = new ArrayList<Long>();
long tmp = 1;
for(int i = 1; i <= len; i ++) {
if(i == len || array[i] != array[i - 1]) {
elem.add(array[i - 1]);
cnt.add(tmp);
tmp = 1;
}else {
tmp ++;
}
}
long counts[][] = new long[elem.size()][2];
for(int i = 0; i < elem.size(); i ++) {
counts[i][0] = elem.get(i);
counts[i][1] = cnt.get(i);
}
return counts;
}
long[][] countElements(String str, boolean sort) {
int len = str.length();
char array[] = str.toCharArray();
if(sort) { Arrays.sort(array); }
List<Long> elem = new ArrayList<Long>();
List<Long> cnt = new ArrayList<Long>();
long tmp = 1;
for(int i = 1; i <= len; i ++) {
if(i == len || array[i] != array[i - 1]) {
elem.add((long)array[i - 1]);
cnt.add(tmp);
tmp = 1;
}else {
tmp ++;
}
}
long counts[][] = new long[elem.size()][2];
for(int i = 0; i < elem.size(); i ++) {
counts[i][0] = elem.get(i);
counts[i][1] = cnt.get(i);
}
return counts;
}
int[] baseConvert(long x, int n) {
long tmp = x;
int len = 0;
while(tmp > 0) { tmp /= n; len ++; }
int digit[] = new int[len];
int i = 0;
tmp = x;
while(tmp > 0) { digit[i ++] = (int)(tmp % n); tmp /= n; }
return digit;
}
int[] baseConvert(int x, int n) {
int tmp = x;
int len = 0;
while(tmp > 0) { tmp /= n; len ++; }
int digit[] = new int[len];
int i = 0;
tmp = x;
while(tmp > 0) { digit[i ++] = (int)(tmp % n); tmp /= n; }
return digit;
}
int numDigits(long a) { return Long.toString(a).length(); }
long bitFlag(int a) { return 1L << (long)a; }
boolean isFlagged(long x, int a) { return (x & bitFlag(a)) != 0; }
long countString(String str, String a) { return (str.length() - str.replace(a, "").length()) / a.length(); }
long countStringAll(String str, String a) { return str.length() - str.replaceAll(a, "").length(); }
int lowerBound(long[] array, long key) {
return BS(array, key, true, true, true);
}
int lowerBound(long[] array, long key, int ng, int ok) {
return BS(array, key, true, true, true, ng, ok);
}
int upperBound(long[] array, long key) {
return BS(array, key, true, true, false);
}
int upperBound(long[] array, long key, int ng, int ok) {
return BS(array, key, true, true, false, ng, ok);
}
int cntBS(long[] array, long key, boolean ascending, boolean greater, boolean equals) {
return BS(array, key, ascending, greater, equals, true);
}
int cntBS(long[] array, long key, boolean ascending, boolean greater, boolean equals, int ng, int ok) {
return BS(array, key, ascending, greater, equals, true, ng, ok);
}
int BS(long[] array, long key, boolean ascending, boolean greater, boolean equals) {
return BS(array, key, ascending, greater, equals, false);
}
int BS(long[] array, long key, boolean ascending, boolean greater, boolean equals, int ng, int ok) {
return BS(array, key, ascending, greater, equals, false, ng, ok);
}
int BS(long[] array, long key, boolean ascending, boolean greater, boolean equals, boolean count) {
int ng = ascending ^ greater ? array.length : -1;
int ok = ascending ^ greater ? -1 : array.length;
return BS(array, key, ascending, greater, equals, count, ng, ok);
}
int BS(long[] array, long key, boolean ascending, boolean greater, boolean equals, boolean count, int ng, int ok) {
int index = binarySearch(array, key, greater, equals, ng, ok);
return count ? (int)abs(ok - index) : index;
}
int binarySearch(long[] array, long key, boolean greater, boolean equals, int ng, int ok) {
while (abs(ok - ng) > 1) {
int mid = (ok + ng) / 2;
if(isOKforBinarySearch(array, mid, key, greater, equals)) {
ok = mid;
}else {
ng = mid;
}
}
return ok;
}
boolean isOKforBinarySearch(long[] array, int index, long key, boolean greater, boolean equals) {
return (array[index] > key && greater)
|| (array[index] < key && !greater)
|| (array[index] == key && equals);
}
void reverse(String[] array) {
String reversed[] = new String[array.length];
for(int i = 0; i < array.length; i ++) { reversed[array.length - i - 1] = array[i]; }
for(int i = 0; i < array.length; i ++) { array[i] = reversed[i]; }
}
void reverse(int[] array) {
int reversed[] = new int[array.length];
for(int i = 0; i < array.length; i ++) { reversed[array.length - i - 1] = array[i]; }
for(int i = 0; i < array.length; i ++) { array[i] = reversed[i]; }
}
void reverse(long[] array) {
long reversed[] = new long[array.length];
for(int i = 0; i < array.length; i ++) { reversed[array.length - i - 1] = array[i]; }
for(int i = 0; i < array.length; i ++) { array[i] = reversed[i]; }
}
void reverse(double[] array) {
double reversed[] = new double[array.length];
for(int i = 0; i < array.length; i ++) { reversed[array.length - i - 1] = array[i]; }
for(int i = 0; i < array.length; i ++) { array[i] = reversed[i]; }
}
void reverse(boolean[] array) {
boolean reversed[] = new boolean[array.length];
for(int i = 0; i < array.length; i ++) { reversed[array.length - i - 1] = array[i]; }
for(int i = 0; i < array.length; i ++) { array[i] = reversed[i]; }
}
void reverse(Object[] array) {
Object reversed[] = new Object[array.length];
for(int i = 0; i < array.length; i ++) { reversed[array.length - i - 1] = array[i]; }
for(int i = 0; i < array.length; i ++) { array[i] = reversed[i]; }
}
void fill(int[] array, int x) { Arrays.fill(array, x); }
void fill(long[] array, long x) { Arrays.fill(array, x); }
void fill(double[] array, double x) { Arrays.fill(array, x); }
void fill(boolean[] array, boolean x) { Arrays.fill(array, x); }
void fill(int[][] array, int x) { for(int[] a : array) { fill(a, x); } }
void fill(long[][] array, long x) { for(long[] a : array) { fill(a, x); } }
void fill(double[][] array, double x) { for(double[] a : array) { fill(a, x); } }
void fill(boolean[][] array, boolean x) { for(boolean[] a : array) { fill(a, x); } }
void fill(int[][][] array, int x) { for(int[][] a : array) { fill(a, x); } }
void fill(long[][][] array, long x) { for(long[][] a : array) { fill(a, x); } }
void fill(double[][][] array, double x) { for(double[][] a : array) { fill(a, x); } }
void fill(boolean[][][] array, boolean x) { for(boolean[][] a : array) { fill(a, x); } }
void shuffleArray(int[] array){
int n = array.length;
Random rnd = new Random();
for(int i = 0; i < n; i ++){
int tmp = array[i];
int randomPos = i + rnd.nextInt(n - i);
array[i] = array[randomPos];
array[randomPos] = tmp;
}
}
void shuffleArray(long[] array){
int n = array.length;
Random rnd = new Random();
for(int i = 0; i < n; i ++){
long tmp = array[i];
int randomPos = i + rnd.nextInt(n - i);
array[i] = array[randomPos];
array[randomPos] = tmp;
}
}
void shuffleArray(double[] array){
int n = array.length;
Random rnd = new Random();
for(int i = 0; i < n; i ++){
double tmp = array[i];
int randomPos = i + rnd.nextInt(n - i);
array[i] = array[randomPos];
array[randomPos] = tmp;
}
}
void swap(int[] array, int i, int j) {
int tmp = array[i];
array[i] = array[j];
array[j] = tmp;
}
void swap(long[] array, int i, int j) {
long tmp = array[i];
array[i] = array[j];
array[j] = tmp;
}
void swap(double[] array, int i, int j) {
double tmp = array[i];
array[i] = array[j];
array[j] = tmp;
}
long INF = (long)1e18 + 7;
boolean isINF(long a) { return abs(a) > INF / 1000; }
boolean isPlusINF(long a) { return a > 0 && isINF(a); }
boolean isMinusINF(long a) { return isPlusINF(- a); }
int I_INF = (int)1e9 + 7;
boolean isINF(int a) { return abs(a) > I_INF / 1000; }
boolean isPlusINF(int a) { return a > 0 && isINF(a); }
boolean isMinusINF(int a) { return isPlusINF(- a); }
// mods
long MOD = (long)1e9 + 7; // 998244353;
public long mod(long i) { i %= MOD; return i + (i < 0 ? MOD : 0); }
long pow_m(long x, long y) {
if(y == 0) { return 1;
}else {
long tmp = pow_m(x, y / 2);
return mod(mod(tmp * tmp) * (y % 2 == 0 ? 1 : x));
}
}
long[] pows_m(long x, int max) {
long pow[] = new long[max + 1];
pow[0] = 1;
for(int i = 0; i < max; i ++) {
pow[i + 1] = mod(pow[i] * x);
}
return pow;
}
int MAX_INV_SIZE = 100_100;
HashMap<Long, Long> invMap = new HashMap<>();
long inv(long x) {
x = mod(x);
if(invMap.containsKey(x)) { return invMap.get(x); }
if(invMap.size() >= MAX_INV_SIZE) { return calInv(x); }
invMap.put(x, calInv(x));
return invMap.get(x);
}
long calInv(long x) { return pow_m(x, MOD - 2); }
int MAX_FACT = 5_000_100;
long fact[];
long invFact[];
boolean isFactPrepared = false;
HashMap<Integer, long[]> factMap;
void prepareFact() {
fact = new long[MAX_FACT];
Arrays.fill(fact, 0);
invFact = new long[MAX_FACT];
Arrays.fill(invFact, 0);
fact[0] = 1;
int maxIndex = min(MAX_FACT, (int)MOD);
for(int i = 1; i < maxIndex; i ++) { fact[i] = mod(fact[i - 1] * i); }
invFact[maxIndex - 1] = inv(fact[maxIndex - 1]);
for(int i = maxIndex - 1; i > 0; i --) { invFact[i - 1] = mod(invFact[i] * i); }
factMap = new HashMap<>();
isFactPrepared = true;
}
long P(int n, int r) {
if(!isFactPrepared) { prepareFact(); }
if(n < 0 || r < 0 || n < r) { return 0; }
if(n >= MAX_FACT) {
if(!factMap.containsKey(n)) {
long largeFact[] = new long[MAX_FACT];
factMap.put(n, largeFact);
fill(largeFact, -INF);
largeFact[0] = 1;
}
long largeFact[] = factMap.get(n);
int i = r;
while(isINF(largeFact[i])) { i --; }
for(; i < r; i ++) { largeFact[i + 1] = mod(largeFact[i] * (n - i)); }
return largeFact[r];
}
return mod(fact[n] * invFact[n - r]);
}
long C(int n, int r) {
if(!isFactPrepared) { prepareFact(); }
if(n < 0 || r < 0 || n < r) { return 0; }
return mod(P(n, r) * invFact[r]);
}
long H(int n, int r) { return C((n - 1) + r, r); }
// grid
class Grids {
int h;
int w;
Grid[][] gs;
Grids(int h, int w) {
this.h = h;
this.w = w;
gs = new Grid[h][w];
for(int i = 0; i < h; i ++) {
for(int j = 0; j < w; j ++) {
gs[i][j] = new Grid(i, j, h, w);
}
}
}
void init(boolean[][] b) {
for(int i = 0; i < h; i ++) {
for(int j = 0; j < w; j ++) {
gs[i][j].b = b[i][j];
}
}
}
void init(long[][] val) {
for(int i = 0; i < h; i ++) {
for(int j = 0; j < w; j ++) {
gs[i][j].val = val[i][j];
}
}
}
int dx[] = {0, -1, 1, 0, 0, -1, 1, -1, 1};
int dy[] = {0, 0, 0, -1, 1, -1, -1, 1, 1};
Grid next(Grid g, int i) {
return isValid(g.x + dx[i], g.y + dy[i], g.h, g.w)
? gs[g.x + dx[i]][g.y + dy[i]]
: null;
}
}
class Grid implements Comparable<Grid> {
int x;
int y;
int h;
int w;
int i;
boolean b;
long val;
Grid() { }
Grid(int x, int y, int h, int w) { init(x, y, h, w, false, 0); }
Grid(int x, int y, int h, int w, boolean b) { init(x, y, h, w, b, 0); }
Grid(int x, int y, int h, int w, long val) { init(x, y, h, w, false, val); }
Grid(int x, int y, int h, int w, boolean b, long val) { init(x, y, h, w, b, val); }
void init(int x, int y, int h, int w, boolean b, long val) {
this.x = x;
this.y = y;
this.h = h;
this.w = w;
this.b = b;
this.val = val;
i = x * w + y;
}
@Override
public int compareTo(Grid g) {
return Long.compare(this.val, g.val);
}
}
boolean isValid(int x, int y, int h, int w) {
return x >= 0 && x < h && y >= 0 && y < w;
}
boolean isValid(Grid g) {
return isValid(g.x, g.y, g.h, g.w);
}
// graph
class Graph {
int numNode;
int numEdge;
boolean directed;
Edge edges[];
Node nodes[];
Node reversedNodes[];
Graph(int numNode, int numEdge, boolean directed) {
this.numNode = numNode;
this.numEdge = numEdge;
this.directed = directed;
nodes = new Node[numNode];
reversedNodes = new Node[numNode];
for(int i = 0; i < numNode; i ++) {
nodes[i] = new Node(i);
reversedNodes[i] = new Node(i);
}
}
void init(Edge[] edges) {
this.edges = edges;
for(Edge edge : edges) {
nodes[edge.source].add(edge.target, edge.cost);
if(directed) {
reversedNodes[edge.target].add(edge.source, edge.cost);
}else {
nodes[edge.target].add(edge.source, edge.cost);
}
}
}
void clearNodes() {
for(Node n : nodes) { n.clear(); }
for(Node n : reversedNodes) { n.clear(); }
}
}
class Node extends ArrayList<Edge> {
int id;
Node(int id) {
this.id = id;
}
void add(int target, long cost) {
add(new Edge(id, target, cost));
}
}
class Edge implements Comparable<Edge> {
int source;
int target;
long cost;
Edge(int source, int target, long cost) {
this.source = source;
this.target = target;
this.cost = cost;
}
@Override
public int compareTo(Edge e) {
return Long.compare(this.cost, e.cost);
}
}
public void solve() {
prtln(ni() + ni());
}
}
}