Sum Of Even Digits

Given a number the task is to find the sum of even digits present in the number.

Example 1: Let us take a number 3412. Here sum of even digits is 4+2=6.

C
#include <stdio.h>
int main()
{
    int n=0,r=0,sum=0;
    printf("Enter a number: ");
    scanf("%d",&n);
    while(n>0)
    {
        r=n%10;
        if(r%2==0)
        {
            sum=sum+r;
        }
        n=n/10;
    }
    printf("Sum of even digits: %d",sum);
    return 0;
}
C