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?

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.

Constraints

• $1 \leq D \leq 10000$
• $1 \leq T \leq 10000$
• $1 \leq S \leq 10000$
• All values in input are integers.

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.

见题面 Input 部分

见题面 Output 部分