# include <stdio.h>

//
//  Program 6.10, Stephen Kochan, Programming in C.
//

int main ( void )
{
  int p, d;
  _Bool isPrime;

  for ( p = 2; p <= 50; p++ )
  {

    isPrime = 1;
    for ( d = 2; d < p; d++ )
    {
      if ( p % d == 0 )
      {
        isPrime = 0;
      }
    }

    if ( isPrime != 0 )
    {
      printf ( "%i\n", p );
    }

  }

  return 0;
}