/* Class average program with 
   counter-controlled repetition */
#include <stdio.h>

main()
{
   int counter, grade, total, average;
   
   /* initialization phase */
   total = 0;
   counter = 1;
   
   /* processing phase */
   while (counter <= 10) {
      printf("Enter grade: ");
      scanf("%d", &grade);
      total = total + grade;
      counter = counter + 1; 
   }
   
   /* termination phase */
   average = total / 10;
   printf("Class average is %d\n", average);

   return 0;   /* indicate program ended successfully */
}