#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;
	}
	vector<vector<int>> dp(s.size() + 1, vector<int>(t.size() + 1, 0));


	for (int i = 0; i < s.size(); i++) {
		for (int j = 0; j < t.size(); j++) {
			if (s[i] == t[j]) {
				dp[i+1][j+1] = dp[i][j] + 1;
			} else {
				dp[i+1][j+1] = max(dp[i][j+1], dp[i+1][j]);
			}
		}
	}
	if (dp[s.size()][t.size()] == s.size()) {
		cout << "Yes" << endl;
	} else {
		cout << "No" << endl;
	}

	return 0;



}