Problem:
Score : 100 points

Problem Statement

Takahashi is meeting up with Aoki.

They have planned to meet at a place that is D meters away from Takahashi's house in T minutes from now.

Takahashi will leave his house now and go straight to the place at a speed of S meters per minute.

Will he arrive in time?

Constraints

1 \leq D \leq 10000

1 \leq T \leq 10000

1 \leq S \leq 10000

All values in input are integers.

Input

Input is given from Standard Input in the following format:

D T S

Output

If Takahashi will reach the place in time, print Yes; otherwise, print No.

Sample Input 1

1000 15 80

Sample Output 1

Yes

It takes 12.5 minutes to go 1000 meters to the place at a speed of 80 meters per minute. They have planned to meet in 15 minutes so he will arrive in time.

Sample Input 2

2000 20 100

Sample Output 2

Yes

It takes 20 minutes to go 2000 meters to the place at a speed of 100 meters per minute. They have planned to meet in 20 minutes so he will arrive just on time.

Sample Input 3

10000 1 1

Sample Output 3

No

He will be late.

Solution in C++ (GCC 9.2.1) (judge verdict: Accepted)

#define _GLIBCXX_DEBUG
#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <cmath>
#include <climits>
#include <utility>
using namespace std;
#define omajinai ios::sync_with_stdio(false);cin.tie(nullptr);

#pragma region typedef 
typedef unsigned int uint;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<int, int> P;
#pragma endregion

#pragma region define
#define endl '\n'
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define rep(i, n) for(int i = 0; (i) < (n); (i)++)
#define pb push_back
#define pf push_front
#pragma endregion

#pragma region const
const ld PI = 3.141592653589793;
const ll INF18 = 1e18;
#pragma endregion

#pragma region function
template<class T>inline bool chmin(T& a,T b){
    if(a>b){a=b;return true;}return false;}
template<class T>inline bool chmax(T& a,T b){
    if(a<b){a=b;return true;}return false;}
#pragma endregion



int main() {
omajinai;

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

  t * s >= d ? cout << "Yes" :cout << "No" << endl;
return 0;
}