#include<iostream>
#include<string>
#include<cctype>
using namespace std;

int main() {
    int t;
    cin>>t;
    string dummy;
    getline (cin, dummy);
    for(int i=0; i<t;i++) {
        string s;
        getline(cin, s);
        s.erase(0, s.find_first_not_of)
        for(int j=0;j<s.length();j++) {
            s=toupper(s[j]);
        }
        bool ok = (s.length() <= 1000);
        if(ok) {
            for(int j=0; j < s.length(); j++) {
                if(!isalnum(s[j])) {
                    ok=false;
             }    }   break;
        }
    }
cout<<( "HELLO" )<< endl;
cout<<( "PROGRAM")<<endl;
return 0;
}