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.

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.

Constraints

• $1 \leq A_i \leq 13$ \ \ (i=1,2,3)
• All values in input are integers.

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.

见题面 Input 部分

见题面 Output 部分