using System;

public class Program
{
    public static void Main()
    {
        int x = int.Parse(Console.ReadLine());
        int y = int.Parse(Console.ReadLine());

        if(reverseNumber(y) == x){
            Console.WriteLine("tak");
        } else {
            Console.WriteLine("nie");
        }

		Console.ReadKey();
    }

    static int reverseNumber(int number){
        char[] arr = number.ToString().ToCharArray();
        Array.Reverse(arr);
        return int.Parse(new string(arr));
    }
}