#include <bits/stdc++.h>
namespace my_std {
using namespace std;
inline int read() {
  int ans = 0, f = 1;
  char c = getchar();
  while (!isdigit(c)) {
    f ^= (c == '-');
    c = getchar();
  }
  for (; isdigit(c); c = getchar()) ans = (ans << 1) + (ans << 3) + (c ^ 48);
  return f ? ans : -ans;
}
template <typename _Tp>
inline int chkmin(_Tp &x, _Tp y) {
  return x > y ? x = y, 1 : 0;
}
template <typename _Tp>
inline int chkmax(_Tp &x, _Tp y) {
  return x < y ? x = y, 1 : 0;
}
const int mod = 998244353;
inline void inc(int &x, const int &y) {
  x += y;
  if (x >= mod) x -= mod;
}
inline int ksm(int x, long long y) {
  int res = 1;
  for (; y; y >>= 1, x = 1ll * x * x % mod)
    if (y & 1) res = 1ll * res * x % mod;
  return res;
}
template <typename _Tp>
inline _Tp gcd(_Tp x, _Tp y) {
  return y ? gcd(y, x % y) : x;
}
}  // namespace my_std
using namespace my_std;
int main() { return puts("0"), 0; }
