import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.ArrayDeque; import java.util.Arrays; import java.util.NoSuchElementException; public class Main { public static void main(String[] args) { new Main().run(); } final long MOD=998244353; void run() { FastScanner sc=new FastScanner(); int N=sc.nextInt(); int Q=sc.nextInt(); long[] A=new long[N]; int[] B=new int[Q]; ArrayDeque dq=new ArrayDeque<>(); for (int i=0;i=2) { long[] a=dq.pollFirst(); long[] b=dq.pollFirst(); dq.addLast(mul(a,b,MOD,3)); } PrintWriter pw=new PrintWriter(System.out); long[] dp=dq.poll(); for (int i=0;i10 && a[p-1]==0) --p; if (p!=a.length) a=Arrays.copyOf(a, p); return a; } long[] fft(long[] a, boolean inv, long MODULO, long root) { int n = a.length; int c = 0; for (int i = 1; i < n; ++i) { for (int j = n >> 1; j > (c ^= j); j >>= 1) ; if (c > i) { long d = a[i]; a[i] = a[c]; a[c] = d; } } for (int i = 1; i < n; i *= 2) { long w = pow(root, (MODULO - 1) / (2 * i), MODULO); if (inv) w = inv(w, MODULO); for (int j = 0; j < n; j += 2 * i) { long wn = 1; for (int k = 0; k < i; ++k) { long u = a[j + k]; long v = a[j + k + i] * wn % MODULO; a[j + k] = (u + v) % MODULO; a[j + k + i] = (u - v + MODULO) % MODULO; wn = wn * w % MODULO; } } } return a; } long pow(long a, long n, long MODULO) { long ret = 1; for (; n > 0; n >>= 1, a = a * a % MODULO) { if (n % 2 == 1) ret = ret * a % MODULO; } return ret; } long inv(long a, long mod) { long b = mod; long p = 1, q = 0; while (b > 0) { long c = a / b; long d; d = a; a = b; b = d % b; d = p; p = q; q = d - c * q; } return p < 0 ? p + mod : p; } void tr(Object...o) {System.out.println(Arrays.deepToString(o));} } 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());} }