Get three numbers from users and print product of these three numbers

#include<stdio.h>
#include<stdlib.h>
void line()
{
int i,j;
printf("\n");
for(i=1;i<=42;i++)
printf("=");
}
void header()
{
printf("\n");
printf("Built and Designed by Arslan Malik\n\n www.CworldbyAS.blogspot.com");
printf("\n");
}
int main()
{
line();
header();
line();
int x,y,z,product;
printf("\nEnter any three integers : ");
scanf("%d%d%d",&x,&y,&z);
product=x*y*z;
printf(" Your Product is  : %d\n\n",product);
return 0;
}