题解，本题第一条

#include<iostream>
#include<string>
using namespace std;
int main(){
    string s;
    cin>>s;
    for(int i=0;i<s.size();i++){
        if(s[i]=='e') s[i]='t';
        else if(s[i]=='h') s[i]='Q';
    }
    cout<<s;
    return 0;
}