

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

if(a+b+c>=22):

  print("bust")

else:

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

a = a+b+c



if(a>=22):

    print("bust")

else:

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

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

-if a + b + c >= 22: +a = a + b + c +if a >= 22: