Sum of Digits

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Problem Statement

Write a C program to calculate the sum of all digits of a given integer N.

Input Format

A single integer N.

Output Format

Print the sum of digits.

Constraints

-1000000000 <= N <= 1000000000

Sample Input

Sample Output

Explanation

1 + 2 + 3 + 4 + 5 = 15.

Starter Code

#include <stdio.h>
#include <stdlib.h>

int main() {
    long long n;
    if (scanf("%lld", &n) == 1) {
        // Write your code here
    }
    return 0;
}

Limits

Time Limit: 1s
Memory Limit: 256MB

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