/*
 * Program: Class2a.c
 * 
 * define 2 vars xx yy
 * print their sum and product
 *
 */
 
#include <stdio.h> // include fucntions in library stdio.h

int main(void)     // header for main function
{                  // Begin the main funciton block
  int xx,yy;       // declare integer variables xx and yy
  xx=7;            // assign xx value of 7
  yy=13;           // assign xx value of 13 
  
  printf(" The product of %d and %d is %d\n", xx,yy,xx*yy); // output and calculate product of xx and yy
  printf(" The sum of %d and %d is %d\n", xx, yy, xx+yy);   // output and calculate sim of xx and yy
  
  system("date");  // call the date command
  return 0;        // return int 0 at end of main funciton 
}                  // end main block