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

if sum(a) >= 22:

    print('bust')

else:

    print('win')
def main():

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

    print(('win' if sum(A) <= 21 else 'bust'))



if __name__ == '__main__':

    main()



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

def main():
    A = list(map(int, input().split()))
    print(("win" if sum(A) <= 21 else "bust"))


if __name__ == "__main__":
    main()

-a = list(map(int, input().split())) -if sum(a) >= 22: -    print("bust") -else: -    print("win") +def main(): +    A = list(map(int, input().split())) +    print(("win" if sum(A) <= 21 else "bust")) + + +if __name__ == "__main__": +    main()