猜数字

age = 28

for i in range(4):
    if i < 3:
        guess_num = int(input('guess my age:'))
        if guess_num == age:
            print('you got it,congratulation!')
            break
        elif guess_num >age:
            print('Think smaller')
        else:
            print('Think big')
    else:
        print('over! you have tried to three times!')