#include <bits/stdc++.h>
using namespace std;
#define        ll                long long
#define        ld                long double
#define        pb                push_back
#define        mp                make_pair
#define        sz(v)             ((int)(v).size()) 
#define        nl                '\n'
#define        all(x)            (x).begin(),(x).end()
#define        rall(x)           (x).rbegin(),(x).rend()
#define        rep(i,a,b)        for(int i=a;i<b;i++)
#define        per(i,a,b)        for(int i=b-1;i>=a;i--)
#define        trav(a,x)         for(auto &a:x)
#define        fs                first
#define        se                second
template<typename T,typename T1>T chkmax(T &a,T1 b){if(b>a)a=b;return a;}
template<typename T,typename T1>T chkmin(T &a,T1 b){if(b<a)a=b;return a;}
void dbg_out() { cerr << endl; }
template<typename Head, typename... Tail> void dbg_out(Head H, Tail... T) { cerr << ' ' << H; dbg_out(T...); }
#ifdef nubskr
#define deb(...) cerr << "(" << #__VA_ARGS__ << "):", dbg_out(__VA_ARGS__)
#define debv(a) cerr << #a << " : ("; trav(i,a){cerr << i << ',';}cerr << ')' << endl;
#define debp(a) cerr << #a << ": \n"; trav(i,a){cerr << i.fs << '-' << i.se << endl;}
#else
#define deb(...)
#define debv(a)
#define debp(a)
#endif


void solve(){
    cout << "Hello World!";
}

int32_t main(){ ios::sync_with_stdio(false);cin.tie(NULL);
    int t = 1;
    // cin >> t;
    while(t--){
        solve();
    }
}