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

def count(money):
    count=0
    for i in money:
        count+=i
    return count
sum=count(new_input())
print(sum)