SameWords

using System;

namespace _12.SameWords
{
    class SameWords
    {
        static void Main()
        {
            var word1 = Console.ReadLine().ToLower();
            var word2 = Console.ReadLine().ToLower();

            if (word1 == word2)
            {
                Console.WriteLine("yes");
            }
            else
            {
                Console.WriteLine("no");
            }
        }
    }
}