#include "bits/stdc++.h"
using namespace std;
#define ll long long int
#define rep(i,n) for( int i = 0; i < n; i++ )
#define rrep(i,n) for( int i = n; i >= 0; i-- )
#define REP(i,s,t) for( int i = s; i <= t; i++ )
#define RREP(i,s,t) for( int i = s; i >= t; i-- )
#define dump(x)  cerr << #x << " = " << (x) << endl;
#define INF 2000000000
#define mod 1000000007
#define INF2 1000000000000000000


int main(void)
{
    cin.tie(0);
    ios::sync_with_stdio(false);
	string S[2]; cin >> S[0];
	int N; cin >> N;
	cin >> S[1];
	int cnt[2] = {};
	rep(i, 2) rep(j, 3) if (S[i][j] == 'o') cnt[i]++;
	if (N > 2) N = N % 2 + 2;
	rep(j, 1 << N) {
		string K = S[0];
		rep(i, N) {
			//cout << K << "->";
			if (j & (1 << i)) swap(K[0], K[1]);
			else swap(K[1], K[2]);
			//cout << K << endl;
		}
		if (K == S[1]) {
			cout << "FAILURE" << endl;
			return 0;
		}
	}
	cout << "SUCCESS" << endl;

    return 0;
}