#include "bits/stdc++.h"
using namespace std;

 
int main() {
	string sb, sa;
	cin >> sb;
	int N;
	cin >> N;
	cin >> sa;
	int cnt = 0;
	int diff = 0;
	int c2 = 0;
	int maxa = 0;
	int maxb = 1;
	for (int i = 0; i < 3; i++)
	{
		if (sa[i] != sb[i]) diff |= (1 << i);
		if (sa[i] == 'o'){
			cnt++;
			c2++;
			maxa = i;
		}
		if (sb[i] == 'o'){
			cnt--;
			maxb = i;
		}
	}
	
	if (cnt == 0 && c2 == 2 && (N % 2) != abs(maxa - maxb) % 2)  cout << "FAILURE" << endl;
	else if (cnt != 0) cout << "SUCCESS" << endl;
	else if (diff != 0 && N == 0)  cout << "SUCCESS" << endl;
	else if (N == 1 && diff == 5) cout << "SUCCESS" << endl;
	else  cout << "FAILURE" << endl;

}