CompareCharArrays

using System;
using System.Linq;

namespace CompareCharArrays
{
    class Program
    {
        static void Main(string[] args)
        {
            char[] arr1 = Console.ReadLine().Split().Select(char.Parse).ToArray();
            char[] arr2 = Console.ReadLine().Split().Select(char.Parse).ToArray();

            if (arr1[0] < arr2[1])
            {
                Console.WriteLine(string.Join("", arr1));
                Console.WriteLine(string.Join("", arr2));
            }
            else if (arr1[0] > arr2[0])
            {
                Console.WriteLine(string.Join("", arr2));
                Console.WriteLine(string.Join("", arr1));
            }
            else
            {
                if (arr1.Length < arr2.Length)
                {
                    Console.WriteLine(string.Join("", arr1));
                    Console.WriteLine(string.Join("", arr2));
                }
                else if(arr1.Length > arr2.Length)
                {
                    Console.WriteLine(string.Join("", arr1));
                    Console.WriteLine(string.Join("", arr2));
                }
                else
                {
                    Console.WriteLine(string.Join("", arr1));
                    Console.WriteLine(string.Join("", arr2));
                }
            }
        }
    }
}