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.