def new_input():
    total = []
    while True:
        unit= input("请输入:") 
        if unit== 'q':
            break
        else:
            try:
                unit=int(unit)
            except:
                print('输入整数') 
            else:     
                total.append(unit)
    return total


def sum(asdf):
    x=0
    for i in asdf:
        x=x+i
    return x
a=new_input()
b=sum(a)
print('您一共消费了'+str(b)+'扫码还是现金呢?')