#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;
using ll = long long;

int main() {
    string s, t;
    int n;
    cin >> s >> n >> t;

    int a = 0, b = 0;
    for (auto c:s) {
        if (c == 'o')a++;
    }
    for (auto c:t) {
        if (c == 'o')b++;
    }
    if (a != b) cout << "SUCCESS" << endl;
    else if (a == 3 || a == 0)cout << "FAILURE" << endl;
    else if (n == 0) cout << (s == t ? "FAILURE" : "SUCCESS");
    else if (n >= 2)cout << "FAILURE";
    else {
        int x = -1, y = -1;
        for (int i = 0; i < 3; i++) {
            bool f = true, g = true;
            for (int j = 0; j < 3; j++) {
                if (i == j)continue;
                if (s[i] == s[j])f = false;
                if (t[i] == t[j])g = false;
            }
            if (f)x = i;
            if (g)y = i;
        }

        cout << (y != 2 - x ? "FAILURE" : "SUCCESS");
    }
    return 0;
}