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 Ruby (2.3.3) (judge verdict: Wrong Answer)

int = gets.to_s
half_size = (int.length / 2)
 
front = int[0, half_size]
back = int[half_size, int.length - 1]
 
counts = 0
 
half_size.times do |n|
  if front[n - 1] != back.reverse[n - 1]
    counts += 1
  end
end
 
p counts