#include <iostream> #include <string> #include <algorithm> #include <vector> #include <iomanip> #include <cmath> #include <stdio.h> #include <queue> #include <deque> #include <cstdio> #include <set> #include <map> #include <bitset> #include <stack> #include <cctype> using namespace std; int main() { string k = "kyoprotenkei90"; string s; cin >> s; sort(k.begin(), k.end()); sort(s.begin(), s.end()); if (k == s) { cout << "Yes" << endl; } else { cout << "No" << endl; } }