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 Rust (1.15.1) (judge verdict: Accepted)

//use rand::Rng;
//use std::cmp::Ordering;
//use std::io;

fn main() {
    let mut s = String::new();
    std::io::stdin().read_line(&mut s).expect("read_line error");

    let mut parts = s.split_whitespace().map(|s| s.parse::<i32>());
    match (parts.next(), parts.next(), parts.next()) {
        (Some(Ok(a)), Some(Ok(b)), Some(Ok(c))) => {
            if a + b + c >= 22 {
                println!("bust")
            } else {
                println!("win")
            }

        }
        // handle other problems: not enough numbers, numbers are invalid, etc
        _ => {}  // ignore invalid input
    }
}