#include<bits/stdc++.h>
#define ll long long

using namespace std;

int main(){
	cout << "H";
	cout << "e";
	cout << "l";
	cout << "l";
	cout << "o";
	cout << ",";
	cout << "W";
	cout << "o";
	cout << "r";
	cout << "l";
	cout << "d";
	cout << "!";
	return 0;
} 

/*#include<bits/stdc++.h>
using namespace std;
int n,x[100005]={0},k,ans=0;
int check(int p){
	for(int i=2;i*i<=p;i++)if(p%i==0)return 0;
	return 1;
}
void zs(int c,int w,int sum){
	if(w==k+1){
		if(check(sum))ans++;
		return ;
	}
	for(int i=c+1;i<=n;i++)zs(i,w+1,sum+x[i]);
}
int main(){
	cin>>n>>k;
	for(int i=1;i<=n;i++)cin>>x[i];
	zs(0,1,0);
	cout<<ans;
}*/
#include<bits/stdc++.h>
using namespace std;
int main(){
	cout<<"Hello,World!";
}

#include <bits/stdc++.h>
using namespace std;
int main(){
	cout<<"Hello,World!";
}

#include<iostream>
using namespace std;
int main(){
	cout<<"Hello,World!";
}

#include <iostream>
using namespace std;

int main(){
//	long long a,b;
//	cin>>a>>b;
	cout<<"Hello,World!";
	return 0;
}

那么简单的题都看题解，你小可爱啊？