# otal = []
# while True:
#     unit= input("请输入：")
#     if unit== 'q':
#         break
#     else:
#         total.append(unit)
# print(total)t
# try:
#     age = int(input('你今年几岁了?'))
# except:
#     print('要输入整数啊')
# else:
#     if age < 18:
#         print('不可以喝酒嚛')
# print('程序结束')
# def add():
#     x=5
#     y=9
#     return x
#     z = x + y
#     result = add()
#     print(result)
# def add(x,y):
#     c=x*y
#     return c
# a=add(9,5)
# print(a) 
# price=[15,18,14,25]
# count=0
# for i in price:
#     count = count+i
# print(count)