#define _GLIBCXX_DEBUG
#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define all(v) v.begin(), v.end()
using ll = long long;
using vi = vector<int>;
using pii = pair<int, int>;

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