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 OCaml (4.10.0) (judge verdict: Accepted)

let blackjack a1 a2 a3 =
  if a1 + a2 + a3 <= 21 then "win" else "bust"

let a1, a2, a3 =
  Scanf.sscanf (read_line ()) "%d %d %d" (fun a1 a2 a3 -> (a1, a2, a3))
let ans = blackjack a1 a2 a3
let () = print_endline ans