C Program to Subtract two numbers using function at ending of the Program

/*Program to Subtract two numbers using function at ending of the Program*/

#include<stdio.h>

int subtract(int,int);

main()

{

      int num1,num2,ans;

      printf("\n Enter the First Number  ");

      scanf("%d",&num1);

      printf("\n Enter the second Number  ");

      scanf("%d",&num2);

      ans=subtract(num1,num2);

      printf("\n the value of %d - %d is %d ",num1,num2,ans);

}

int subtract(int first, int second)

{

      int result;

      result=first-second;

      return(result);

}