Jörmunrekur has to move milliliters of water between two
places. To do so he is intending to make a water tank. Since he
is not particularly experienced with such matters he simply
intends to glue together six plates, drill a hole and attach a
handle. Because he’s not fond of rational numbers (and even
less so of real numbers) he wants all interior side lengths to
be an integral number of centimeters. Since he’s making a water
box and not a water plate he doesn’t want any side length to be
one centimeter. As a reminder one cubic centimeter is exactly
one milliliter. To be able to attach the handle centrally he
was wondering whether he could choose the side lengths such
that two of them are equal. Can you help him out?
Input
The input contains one integer , the number of
milliliters the tank should hold.
Output
If it is possible to construct the tank with two side
lengths equal print Gengur!.
Otherwise print Vonlaust!.
| Sample Input 1 |
Sample Output 1 |
105
|
Vonlaust!
|
| Sample Input 2 |
Sample Output 2 |
147
|
Gengur!
|
