#include <stdio.h>

/* This program will add two integers and print out the sum */
main() {
 	/* The next line defines the existence of three variables: 
           variable1, variable2, variable3 */
        /* The declaration is preceeded by the word "int".  This word
	   states that the variable is to  hold an integer */

	int variable1;
	int variable2;
	int variable3;

	/* The next line puts a "2" into variable1 */
	variable1 = 2;

	/* The next line puts a "3" into variable2 */
	variable2 = 3;

	/* The next lines:
		takes the 2 from variable1, 
		takes the 3 from variable2,
                adds them,
                puts that sum in variable3 */
	variable3 = variable1 + variable2;

	/* The next line prints out the sum */

	/* %d is a format.  When the CPU encounters the %d, it stops,
	   goes to the first item after the comma, extracts the value
	   of the variable3 and then prints it.
	*/
	printf("The sum is %d\n", variable1, variable2, variable3);
}

/* Try adding these lines:
	printf("the sum of %d and %d is %d\n", variable1, variabl2, variable3)
*/