Answer to Question #257479 in Python for Chantal

Question

As I've said before, there are three types of numbers: the positive, the zero, and the negative ones. Today, we shall pay attention only to the negative ones now. Make a loop that will accept random decimal/float numbers. When the user inputs 0, the loop will terminate and then output the sum of all negative numbers inputted in 3 decimal places.

Let's code this.

Input

Multiple lines containing a decimal .

2.4434
-1.3433
-2.444
6.432
0

Output

A line containing a decimal with three decimal places.

-3.787

Answer 1

sum = 0
while True:
    tmp = float(input())
    if tmp == 0:
        break
    if tmp < 0:
        sum += tmp
print('{:.3f}'.format(sum))