#412. Read until 0: sum
Numbers come one on each line. The input ends when the number 0 comes (the 0 is not counted). Find the **sum** of the numbers.
### Input
Several integers, the last one is 0. There is at least one number before the 0.
### Output
The answer.
Examples
Input
34 90 -17 48 99 -12 -13 99 56 0
Output
384
Input
52 31 96 53 15 -21 0
Output
226
💡 You can solve it with Python, JavaScript or blocks. Read the input line by line with input(). Don't print a question (like input("Number: ")). Print exactly what the output asks for, nothing more.