a1, a2, a3 = list(map(int, input().split()))



if a1 + a2 + a3 >= 22:

    print('bust')

else:

    print('win')

a = list(map(int, input().split()))



if a[0] + a[1] + a[2] >= 22:

    print('bust')

else:

    print('win')

a1, a2, a3 = list(map(int, input().split()))
if a1 + a2 + a3 >= 22:
    print("bust")
else:
    print("win")

a = list(map(int, input().split()))
if a[0] + a[1] + a[2] >= 22:
    print("bust")
else:
    print("win")

-a1, a2, a3 = list(map(int, input().split())) -if a1 + a2 + a3 >= 22: +a = list(map(int, input().split())) +if a[0] + a[1] + a[2] >= 22: