using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace task._07
{
    class Program
    {
        public static List<int> PrimesInRange(int startNum, int endNum)
        {
            var primeNumbers = new List<int>();

            for (int i = startNum; i <= endNum; i++)
            {
                if (IsPrime(i))
                {
                    primeNumbers.Add(i);
                }
            }
            return primeNumbers;
        }

        public static bool IsPrime(int inputNumber)
        {
            bool check = true;

            for (int j = 2; j <= Math.Sqrt(inputNumber); j++)
            {
                if ((inputNumber % j) == 0)
                {
                    return false;
                }
            }
            return true;
        }
        static void Main(string[] args)
        {
            int firstInput = int.Parse(Console.ReadLine());
            int secondInput = int.Parse(Console.ReadLine());
            Console.WriteLine(string.Join(", ", PrimesInRange(firstInput, secondInput)));
        }
    }
}