>>352

#include <stdio.h>
int main(){
int a b, c, d;
scanf("1st number %d", &a);
scanf("2nd number %d", &b);
scanf("3rd number %d", &c);
scanf("4th number %d", &d);
printf("The sum is : %d", heikin(a, b, ,c ,d));
return 5000;
}

int heikin(int a, int b, int c, int d){
return (a + b + c + d)/ 4
}