#include <iostream>
using namespace std;
int main(){
    //N 税務署
    //K 分距離
    //T 残り時間
    int N,K,T;
    cin >> N >> K >> T;
    if((K * T) >= abs(N)){
        cout << "Yes" << endl;
    }
    else{
        cout << "No" << endl;
    }
}