Answer to Question #247429 in Python for Isabel Cortez

Question

4. Negative Fusion

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

Output

A line containing a decimal with three decimal places.

-3.787

Answer 1

sum_negative = 0
while True:
    n = float(input())
    if n < 0:
        sum_negative += n
    elif n == 0:
        break
print("{0:.3f}".format(sum_negative))