GDC calculate

using System;
using System.Collections.Generic;
using System.Linq;

namespace CalculateGCD
{
    class CalculateGCD
    {
        static void Main()
        {
            int a = int.Parse(Console.ReadLine());
            int b = int.Parse(Console.ReadLine());
            List<int> divisors = new List<int>();

            for (int i = 1; i <= b || i <=a; i++)
            {
                if (a % i == 0 && b % i == 0)
                {
                    divisors.Add(i);
                }
            }

            foreach (var item in divisors)
            {
                Console.Write(item + " ");
            }

            Console.WriteLine();
            var result = divisors.Max();
            Console.WriteLine(result);
        }
    }
}