using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Text;
using System.Text.RegularExpressions;
using System.Linq;

class Magatro
{
    static string B = Console.ReadLine();
    static int N = int.Parse(Console.ReadLine());
    static string A = Console.ReadLine();
    static void Main()
    {
        int tempa = 0;
        int tempb = 0;
      for(int i = 0; i < 3; i++)
        {
            if (B[i] == 'o') tempb++;
            else tempb--;
            if (A[i] == 'o') tempa++;
            else tempa--;
        }
        if (tempa != tempb)
        {
            Console.WriteLine("SUCCESS");
            return;
        }
        if (N == 0)
        {
            if (B == A)
            {
                Console.WriteLine("FAILURE");
                return;
            }
            else
            {
                Console.WriteLine("SUCCESS");
            }
        }
        else if (N == 1)
        {
            if((A[0]==B[0]&&A[1]==B[2]&&A[2]==B[1])|| (A[2] == B[2] && A[1] == B[0] && A[0] == B[1])) Console.WriteLine("FAILURE");
            else Console.WriteLine("SUCCESS");
        }
        else
        {
            Console.WriteLine("FAILURE");
        }
    }

}