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

print(('bust' if a+b+c>=22 else 'win'))
A = list(map(int, input().split()))

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

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

-a, b, c = list(map(int, input().split())) -print(("bust" if a + b + c >= 22 else "win")) +A = list(map(int, input().split())) +print(("bust" if sum(A) >= 22 else "win"))