#include #include using namespace std; const long long MOD1 = 1000000007; const long long MOD2 = 998244353; #define logn long #define lnog long #define lgon long #define itn int typedef long long ll; typedef pair P; const long long INF = 1e18; int main(){ string S; cin >> S; string T = "kyoprotenkei90"; sort(S.begin(),S.end()); sort(T.begin(),T.end()); if (S==T){ cout<<"Yes"<