THAYTU C++

#include <bits/stdc++.h>
using namespace std;

string s;
void nhap()
{
    getline(cin,s);
}
void giai()
{
    while(s.find("anh")!=-1)
    {
        int x = s.find("anh");
        s.replace(x,3,"em");
    }
    cout << s;
}



int main()
{
    freopen("thaytu.inp","r",stdin);
    freopen("thaytu.out","w",stdout);
    nhap();
    giai();
}