# include<bits/stdc++.h>
# include<atcoder/fenwicktree>
using namespace atcoder;
using namespace std;
# define rep(i,n) for (int i = 0; i < (n); i++)
const int inf = 2100000000;
const long long INF = 2167167167167167167;
using ll = long long;
using P = pair<int,int>;

int main() 
{  
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    cout << "Hello World!" << endl;
    return 0;
}