/*
creator: jennyvi San sebastian
 
 
 
 
*/
 
 
import java.util.Scanner;
 
 
public class PrimeNumbers{
	public static void main(String ivy[]){
 
		int input = 0;
		int counter;
		int div;
		String choice = null;
 
	 do{
			Scanner keyIn = new Scanner(System.in);		
			System.out.print("Enter a number: ");
			input = keyIn.nextInt();
 
			int start = 2;
 
			while (start <= input){
				div = 2;counter = 0;
 
				while (div <= start)
				{
					if (start % div == 0 && div==start)
						{
						counter++;
						}
					if (start % div == 0 && div!=start)
						{
							counter++;
 
						}
 
					div++;
				}
 
				if (counter == 1)
					{
					System.out.print(start + " ");
					}
 
				    start++;
			}
 
			System.out.println();
 
    System.out.println("\nDo you want to continue <YES/N0>: ");
    choice = keyIn.next();
    choice = choice.toUpperCase();
 
  }while(choice.equals("YES"));
 
}