import java.io.IOException; import java.io.InputStream; import java.util.ArrayDeque; import java.util.Arrays; import java.util.NoSuchElementException; import java.util.Scanner; class Main { public static void main(String[] args) { new Main().run(); } long pow(long a,long n) { long ret=1; for(;n>0;n/=2,a=a*a%2)if(n%2==1)ret=ret*a%2; return ret; } void run() { Scanner sc=new Scanner(System.in); //f(0)=a //f(+1)=b //f(-1)=c //f(x)={(b+c-2a)/2}x^2+{(b-c)/2}x+a int D=sc.nextInt(); int[] A=new int[D+1]; for(int i=0;i=0&&B[deg]==0)--deg; System.out.println(Math.max(deg,0)); for(int i=0;i<=Math.max(deg,0);++i) { System.out.print(B[i]+(i==deg?"\n":" ")); } } void tr(Object...objects) {System.out.println(Arrays.deepToString(objects));} } 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 static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;} public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; 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(); } } public int nextInt() { long nl = nextLong(); if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException(); return (int) nl; } public double nextDouble() { return Double.parseDouble(next());} }