#include <iostream>
#include <cstdlib>
#include <vector>
#include <algorithm>
#include <cmath>
int main()
{
    std::string a = "yukicoder";
    std::string s;
    std::cin >> s;
    for(int i = 0; i < 9; i++){
        if(s[i] == '?'){
            std::cout << a[i];
        }
    }
    std::cout <<std::endl;
    return 0;
}