# include <stdio.h>
# include <stdbool.h>

//
//  Program 7.4, Stephen Kochan, Programming in C.
//

int main ( void )
{
  int p, i, primes[50], primeIndex = 2;
  bool isPrime;

  primes[0] = 2;
  primes[1] = 3;

  for ( p = 5; p <= 50; p = p + 2 )
  {
    isPrime = true;

    for ( i = 1; isPrime && primes[i] <= p / primes[i]; i++ )
    {
      if ( p & primes[i] == 0 )
      {
        isPrime = false;
      }
    }

    if ( isPrime == true )
    {
      primes[primeIndex] = p;
      ++primeIndex;
    }

  }

  for ( i = 0; i < primeIndex; i++ )
  {
    printf ( "  %i\n", primes[i] );
  }
  printf ( "\n" );

  return 0;
}