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

if sum(a) >= 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 sum(a) >= 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 sum(a) >= 22: +a1, a2, a3 = list(map(int, input().split())) +if a1 + a2 + a3 >= 22: