#include <stdio.h>

int main (void)
{
    int sum = 0;
    int inputResult = 0;
    int number = 0;

    do
    {
        printf( "total so far = %d\n", sum );

        inputResult = scanf( "%d", &number );

        if (inputResult != 0)
        {
            sum += number;
        }

    } while ( number != 0 );


    printf( "sum of values = %d\n", sum );
    return 0;
}