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

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

b=sum(a)

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

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

-print(("bust" if sum(a) >= 22 else "win")) +b = sum(a) +print(("bust" if b >= 22 else "win"))