#include "bits/stdc++.h"
using namespace std;

using ll = long long;
using P = pair<ll, ll>;
const ll INF = (1LL << 61);
ll mod = 998244353;

signed main() {
	ios::sync_with_stdio(false);
	cin.tie(0);
	string S; cin >> S;
	string T = "kadomatsu";
	int idx = 0;
	for (int i = 0; i < 9; i++) {
		if (idx == S.size()) {
			cout << "Yes" << endl; return 0;
		}
		if (S[idx] == T[i]) {
			idx++;
		}
		else {
			
		}
	}
	if (idx == S.size()) {
		cout << "Yes" << endl; return 0;
	}
	else {
		cout << "No" << endl;
	}
	return 0;
}