# include <stdio.h>

int main ( )
{
//
//  If we know the values of an array, we can initialize the array
//  like this:
//
  int a[10] = { 210, 421, 132, 343, 854, 165, 276, 587, 398, 109 };
  float average;
  int i;
  int sum;
//
//  The array A has 10 elements.
//  Their "names" are A[0], A[1], ..., A[9].
//  A FOR loop should go from 0 to 9.
//
  for ( i = 0; i < 10; i++ )
  {
    printf ( "a[%i] = %i\n", i, a[i] );
  }

  sum = 0;
  for ( i = 0; i < 10; i++ )
  {
    sum = sum + a[i];
  }
  printf ( "\n" );
  printf ( "The sum is %i\n", sum );
//
//  The average will be a real number.
//
  average = ( float ) sum / 10.0;
  printf ( "The average is %g\n", average );

  return 0;
}