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


$n = trim(fgets(STDIN));
//$aline = trim(fgets(STDIN));

$n = explode(" ", $n);

if (($n[0] + $n[1] + $n[2]) > 21) {
    echo 'bust' . PHP_EOL;
} else {
    echo 'win' . PHP_EOL;
}