public class primes
{
   public static void main(String[] args)
   {
      int number, range;
      boolean prime;
      
      for ( number = 1; number <= 100; number++)
      {
	 if ( number % 2 != 0 )
	   prime = true;
	 else
	   prime = false;
	 for ( range = 3; range < number && prime; range = range + 2 )
	 {
	    if ( number % range == 0 )
	      prime = false;
	 }
	 if ( prime )
	   System.out.println(number);
      }
   }
}