#include<iostream>
#include<cassert>
#include<queue>
using namespace std;

#define inRange(x,a,b) (a <= x && x <= b)

void check(string s){
    assert((int)(s.length()) <= 10);
    for(char c : s) assert(inRange(c, 'a', 'z'));
}

int main(){
    queue<char> q;
    for(char c : "kadomatsu")   q.push(c);
    
    string s;
    cin >> s;
    for(char c : s){
        while(!q.empty() && q.front() != c) q.pop();
        if(q.empty()){
            cout << "No" << endl;
            return 0;
        }
    }
    cout << "Yes" << endl;
    
    check(s);
    return 0;
}