#include<bits/stdc++.h>
#define rep1(i, n) for(int i = 0; i < (int)(n); i++)
using namespace std;

int main(){
    string s = "kyoprotenkei90", t; cin >> t;
    vector<int> c1(10), c2(26), c3(10), c4(26);
    rep1(i, s.size()){
        if('0' <= s[i] && s[i] <= '9') c1[s[i]-'0']++;
        else c2[s[i]-'a']++;
    }
    rep1(i, t.size()){
        if('0' <= t[i] && t[i] <= '9') c3[t[i]-'0']++;
        else c4[t[i]-'a']++;
    }
    bool flag = true;
    rep1(i, 10) if(c1[i] > c3[i]) flag = false;
    rep1(i, 26) if(c2[i] > c4[i]) flag = false;
    cout << (flag?"Yes":"No") << endl;
}