#include <bits/stdc++.h>
using namespace std;

#define MOD 998244353

int mod_inv(int a) {
  int b = MOD, u = 1, v = 0;
  while (b) {
    int t = a / b;
    a -= t * b; swap(a, b);
    u -= t * v; swap(u, v);
  }
  u %= MOD;
  if (u < 0) u += MOD;
  return u;
}

int main() {
  int N, K;
  cin >> N >> K;
  cout << mod_inv(6) << endl;
  return 0;
}