Problem:
Score : 100 points

Problem Statement

Given are three integers A_1, A_2, and A_3.

If A_1+A_2+A_3 is greater than or equal to 22, print bust; otherwise, print win.

Constraints

1 \leq A_i \leq 13 \ \ (i=1,2,3)

All values in input are integers.

Input

Input is given from Standard Input in the following format:

A_1 A_2 A_3

Output

If A_1+A_2+A_3 is greater than or equal to 22, print bust; otherwise, print win.

Sample Input 1

5 7 9

Sample Output 1

win

5+7+9=21, so print win.

Sample Input 2

13 7 2

Sample Output 2

bust

13+7+2=22, so print bust.

Solution in PHP7 (7.0.15) (judge verdict: Accepted)

<?php
// $n = (int)trim(fgets(STDIN));
$input = explode(' ', trim(fgets(STDIN)));

$a1 = (int)$input[0];
$a2 = (int)$input[1];
$a3 = (int)$input[2];

if ($a1 + $a2 + $a3 >= 22) {
	echo "bust";
}else{
	echo "win";
}