5619: ABC177——A - Don't be late
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Description
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?
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
One line have three integers. $D\ T\ S$.
Output
If Takahashi will reach the place in time, print ${Yes}$; otherwise, print ${No}$.
Constraints
$1≤D≤10000$
$1≤T≤10000$
$1≤S≤10000$
$1≤T≤10000$
$1≤S≤10000$
Sample 1 Input
1000 15 80
Sample 1 Output
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 2 Input
2000 20 100
Sample 2 Output
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 3 Input
10000 1 1
Sample 3 Output
No
He will be late.
HINT
题目来源：AtCoder ABC 177 A题。