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

int main() {
	ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	//freopen("input.txt", "r", stdin);
	string s; cin >> s;
	string t = "kadomatsu";
	if (s == t) {
		cout << "Yes" << endl;
		return 0;
	} else if (s.size() >= t.size()) {
		cout << "No" << endl;
		return 0;
	}

	cout << "No" << endl;
	return 0;



}