PROGRAMMING:Access data
On this day, Keven suddenly wants to play a game with ZWG. The rules of the game are as follows: there are n numbers in a row (ensure that n is even). Keven and ZWG can take a number from the leftmost or rightmost side of the sequence each time, until all the numbers are taken out, and the last one with the largest number will win. Keven started.
###Input format:
Enter a positive integer n in one line (ensure that n is positive even and 'n < 1000'). The second line gives n positive integers with absolute values less than '1e10'
###Output format:
If Keven wins or draws, output 'Keven tql!', If Keven loses, it outputs' ZWG tql! '.
###Input example:
Here is a set of inputs. For example:
```in
two
5 5
```
###Output example:
The corresponding output is given here. For example:
```out
Keven tql!
```
answer：If there is no answer, please comment
###Input format:
Enter a positive integer n in one line (ensure that n is positive even and 'n < 1000'). The second line gives n positive integers with absolute values less than '1e10'
###Output format:
If Keven wins or draws, output 'Keven tql!', If Keven loses, it outputs' ZWG tql! '.
###Input example:
Here is a set of inputs. For example:
```in
two
5 5
```
###Output example:
The corresponding output is given here. For example:
```out
Keven tql!
```
answer：If there is no answer, please comment