The sum of the elements of the sequence - 2
Problem
Find the sum of a sequence of natural numbers if the sign of the end of the sequence is two consecutive numbers 0
. Numbers after two zeros should not be involved in solving the problem.
Input
A sequence of natural numbers is entered.
Imprint
Print the answer to the problem.
Examples
# |
Input |
Output |
1 |
2
0
7
0
9
0
0
3 |
18 |
Запрещенные операторы: list
; [