#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (n); i++)
using namespace std;
typedef long long ll;

int main(){
    cin.tie(0);
    ios::sync_with_stdio(0);
    
    string S,T; int N; cin >> S >> N >> T;
    auto c = [](string X) { 
        int res = 0;
        for(char x : X) if(x == 'o') res++;
        return res;
    };

    if(c(S) != c(T)) {
        cout << "SUCCESS" << endl;
    } else if(N == 0) {
        cout << (S == T ? "FAILURE" : "SUCCESS") << endl;
    } else if(N == 1) {
        int ex = 0;
        swap(S[0], S[1]); ex |= S == T; swap(S[0], S[1]);
        swap(S[1], S[2]); ex |= S == T; swap(S[1], S[2]);
        cout << (ex ? "FAILURE" : "SUCCESS") << endl;
    } else {
        cout << "FAILURE" << endl;
    }
}