#include "simpletools.h"                      // Include simpletools

int adder(int a, int b);                      // Function prototype
int subtracter(int a, int b);

int main()                                    // main function
{
  int n = adder(25, 17) + adder(100, 2);                      // Call adder function
  print("adder's result is = %d\n", n);         // Display adder function result
  n = subtracter(25, 17) - subtracter(100,2);
  print("subtracter's result is %d\n",n);
}

int adder(int a, int b)                       // adder function
{
  int c = a + b;                              // Add two values
  return c;                                   // Return the result
}

int subtracter(int a, int b)                       // adder function
{
  int c = a - b;                              // Add two values
  return c;                                   // Return the result
}