Product if two numbers in C

#include <stdio.h>

int mul(int ,int );

int main() {

int r,a,b;

printf("We are going to calculate the product n");

printf("Enter two numbers : ");

scanf("%d%d", &a, &b);

r = mul(a,b);

printf("result is %d", r);

}

int mul(int a , int b) {

return a*b;

}

Output :

We are going to calculate the product

Enter two numbers : 6 8

result is 48

=== Code Execution Successful ===