#include <stdio.h>
main ( ) {
  int size_one = 600, size_two = 100, size_three = 200, sum;
  sum = size_one;          /* Sum assigned a value */
  sum = sum + size_two;    /* Sum assigned a new value */
  sum = sum + size_three;  /* Sum assigned a new value */
  printf ("The average number of shares traded is ");
  printf ("%i", sum / 3);
  printf ("\n");
}