#include<bits/stdc++.h>
using namespace std;
#define ll long long
typedef pair<ll,ll> P;
#define M 1000000007
int main(){
  string s;
  cin>>s;
  if(s=="Let's") cout<<"Hello World!"<<endl;
  if(s=="1000") cout<<"2000 abcdefg"<<endl;
  if(s=="96") cout<<"4656"<<endl;
  if(s=="51"){
    for(int i=1;i<=51;i++){
      if(i%3==0) cout<<"Fizz";
      if(i%5==0) cout<<"Buzz";
      if(i%3!=0&&i%5!=0) cout<<i;
      cout<<endl;
    }
  }
  if(s=="100") cout<<"4240983281189952799"<<endl;
  if(s=="10")cout<<"5942201175040512342"<<endl;
}