#define _USE_MATH_DEFINES
#include  <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
#include <string>
#include<math.h>
#include<iomanip>
#include<stdio.h>
#include <stdlib.h>
#include<stdio.h>
#include <queue>
#include<map>
#include <fstream>
#include <sstream>
#include<set>
#include<stack>
#include<time.h>
#include <sys/types.h>
#include <tuple>
#include <numeric>
#include <iterator>

typedef long long int ll;
//#include<bits/stdc++.h>


using namespace std;

ll gcd(ll a, ll b) {
    if (a < b)swap(a, b);
    if (b == 0)return a;
    return gcd(b, a % b);
}
int lcm(int a, int b) {
    return a * b / gcd(a, b);
}







int main()
{

    int Q;
    Q = 1;
    //cin >> Q;   

    while (Q--) {
        string a,b;
        ll n;
        cin >> a >> n >> b;
        int x = 0;
        int y = 0;
        for (int i = 0; i < 3; i++) {
            if (a[i] == 'o')x++;
            if (b[i] == 'o')y++;
        }
        string ans = "FAILURE";
        if (x != y) {
            ans = "SUCCESS";
        }
        else if (!n && a != b)ans = "SUCCESS";
        else {
            if (n == 1) {
                for (int i = 0; i < 2; i++) {
                    string t = a;
                    swap(t[i], t[i + 1]);
                    if (t == b) {
                        cout << ans; return 0;
                    }
                }
                ans = "SUCCESS";
            }
        }
        cout << ans;
    }
    return 0;
}