using System;
using System.Collections.Generic;

public class PrimesInGivenRange
{
    public static void Main()
    {
        Console.WriteLine(String.Join(", ", GetNumbers()));

    }

    public static int[] GetNumbers()
    {
        int start = int.Parse(Console.ReadLine());
        int end = int.Parse(Console.ReadLine());

        List<int> list = new List<int>();

        for (int i = start; i <= end; i++)
        {
            int isPrime = 0;
            for (int j = 1; j < i; j++)
            {
                if (i % j == 0)
                {
                    isPrime++;
                }
                if (isPrime == 2)
                {
                    break;
                }

            }
            if (isPrime != 2)

                list.Add(i);
        }

        return list.ToArray();
    }
}