猜年龄，限3次

# -*— coding：encoding utf-8 -*-
# author sue
L= 18
count=0
while count<3:
    old = int(input("input old:"))
    count += 1
    if old==L:
        print("clevel")
        break
    elif count<3 and old<L:
        print("bigger")


    elif count<3 and old>L:
        print("smaller")
    else:
        print("ben,")