100 atcoder#ABC177A. [ABC177A] Don't be late

[ABC177A] Don't be late

Score : 100100 points

Problem Statement

Takahashi is meeting up with Aoki.

They have planned to meet at a place that is DD meters away from Takahashi's house in TT minutes from now.

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

Will he arrive in time?

Constraints

  • 1D100001 \leq D \leq 10000
  • 1T100001 \leq T \leq 10000
  • 1S100001 \leq S \leq 10000
  • All values in input are integers.

Input

Input is given from Standard Input in the following format:

DD TT SS

Output

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

1000 15 80
Yes

It takes 12.512.5 minutes to go 10001000 meters to the place at a speed of 8080 meters per minute. They have planned to meet in 1515 minutes so he will arrive in time.

2000 20 100
Yes

It takes 2020 minutes to go 20002000 meters to the place at a speed of 100100 meters per minute. They have planned to meet in 2020 minutes so he will arrive just on time.

10000 1 1
No

He will be late.