#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define reps(i, s, n) for (int i = s; i < (int)(n); i++)
#define ALL(x) (x).begin(), (x).end()
#define INF 1001001001
#define MOD 1000000007
using ll = long long;
using vi = vector<int>;

int main() {
    cout << "Hello World!" << endl;
}