#include using namespace std; typedef long long ll; typedef pair pii; #define pb push_back #define mp make_pair #define rep(i,n) for(int i=0;i<(n);++i) int main(){ cin.tie(0); ios::sync_with_stdio(false); string s;cin >> s; string t="yukicoder"; rep(i,s.size()){ if(s.at(i)=='?') cout << t.at(i) << endl; } }