// function example

#include <iostream>  //allows use of standard in / out steam (cout, cin, cerr)
using namespace std;  // allows cout, cin, cerr to be called directly without iostream.cin, etc


//addition function is defined here, it is called explicitly later
int addition (int a, int b)
{
  int r;
  //r equals the passed in integer values
  r=a+b;
  //return the value of R where addition is called
  return (r);
}


//main function of the program
//required to run
//void shows we don't return anything from main, though int can be used to do so
void main ()
{
//define variable types
  int i;
  int j;
  int z;
//give starter values to i and j
  i = 1;
  j = 2;
//call addition with I and J, Z will gain the return value
  z = addition (i,j);
//cout will print the string to the screen
  cout << "The result is " << z;
}