using System;

public class Hello
{
    public static void Main()
    {
        var s = Console.ReadLine().Trim();
        var n = int.Parse(Console.ReadLine().Trim());
        var t = Console.ReadLine().Trim();
        Console.WriteLine(check(s, t, n) ? "SUCCESS" : "FAILURE");
    }
    public static bool check(string s, string t, int n)
    {
        var sx = 3 - s.Replace("x", "").Length;
        var tx = 3 - t.Replace("x", "").Length;
        if (sx != tx) return true;
        if (n == 0 && s != t) return true;
        if (n >= 2) return false;
        if (n == 1)
        {
            var ns1 = s[1] + s[0] + s[2] + "";
            var ns2 = s[0] + s[2] + s[1] + "";
            if (ns1 == t | ns2 == t) return false;
            else return true;
        }
        return false;
    }
}