#include <stdio.h>

int average(int a, int b, int c);

void main(void)

{

int a = 1, b = 2, c = 3;

int a2 = 1234, b2 = 2345, c2 = 3456;

int a3 = 9876, b3 = 2345, c3 = 1;

int y = average(a, b, c);

int y2 = average(a2, b2, c2);

int y3 = average(a3, b3, c3);

printf("this average is %d", y);

printf("this average is %d", y2);

printf("this average is %d", y3);

}

int average(int a, int b, int c, )

{

return(a + b + c) / 3;

}