a,b,c=[int(x) for x in input().split()]

if a+b+c>=22:

    print('bust')

else:

    print('win')





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

if(sum(a)>=22):

    print("bust")

else:

    print("win")
a, b, c = [int(x) for x in input().split()]
if a + b + c >= 22:
    print("bust")
else:
    print("win")

a = list(map(int, input().split()))
if sum(a) >= 22:
    print("bust")
else:
    print("win")

-a, b, c = [int(x) for x in input().split()] -if a + b + c >= 22: +a = list(map(int, input().split())) +if sum(a) >= 22: