Score: 100 points
Takahashi the Jumbo will practice golf.
His objective is to get a carry distance that is a multiple of K, while he can only make a carry distance of between A and B (inclusive).
If he can achieve the objective, print OK
; if he cannot, print NG
.
Input is given from Standard Input in the following format:
K A B
If he can achieve the objective, print OK
; if he cannot, print NG
.
7 500 600
OK
Among the multiples of 7, for example, 567 lies between 500 and 600.
4 5 7
NG
No multiple of 4 lies between 5 and 7.
1 11 11
OK