#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
using namespace std;

int main() {
    
    string original = "yukicoder";
    string s;
    cin >> s;
    for(int i = 0;i < 9;i++){
        if(s[i] == '?')cout << original[i];
    }
    
    return 0;
}