#include<bits/stdc++.h>
using namespace std;
using ll = long long int;
using ld = long double;
const ll MAX = 50000000000000;
ll MOD = 1000000007;
int main(){
    string S,T = "kadomatsu";
    ll i;
    cin >> S;
    for(i = 0;i < 9;i++){
        if(S.size() < i || S[i] != T[i]){
            S.insert(S.begin() + i,T[i]);
        }
    }
    if(S == T) cout << "Yes\n";
    else cout << "No\n";
}