#include <iostream>
#include <string>

using namespace std;

int main() {

	int d, t, s, minute;
	cin >> d >> t >> s;

	if (d % s) {
		minute = d / s + 1;
	}
	else {
		minute = d / s;
	}

	if (minute <= t)
		std::cout << "Yes\n";
	else
		std::cout << "No\n";

	return 0;
}
#include<bits/stdc++.h>
#define lint long long
#define st first
#define nd second
#define INF 0x3f3f3f3f

using namespace std;


int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL); cout.tie(NULL);
	int k; cin>>k;
	string s; cin>>s;
	for(int i=0; i<min(k, (int)s.size());i++)	cout<<s[i];
	
	if((int)s.size() > k)	
		cout<<"...";
	cout<<"\n";
	return 0;	
}
