#include <stdio.h>

/* Note that we put parentheses around the parameters and
** the whole macro.
*/
#define SUM(x,y,z) ((x)+(y)+(z))

int main() 
{
    int a,b,c;
    
    /* Prompt for numbers */
    printf("Enter 3 integers (one per line): ");
    scanf("%d", &a);
    scanf("%d", &b);
    scanf("%d", &c);
    printf("%d + %d + %d = %d\n", a,b,c, SUM(a,b,c));
    return 0;
}