#include <iostream>
#include <math.h>
#include <string>
#include <algorithm>
using namespace std;

int main(){
	string sb;
	string sa;
	long long n;
	int cnta = 0;
	int cntb = 0;
	cin >>sb>> n>>sa;
	for (int i = 0; i < 3; i++){
		if (sb[i] == 'o'){
			cntb++;
		}
		if (sa[i] == 'o'){
			cnta++;
		}

	}
	if (cntb != cnta){
		cout << "SUCCESS" << endl;
	}else if (n >= 2){
		cout << "FAILURE" << endl;
	}
	else if (n == 0){
		if (sb == sa){
			cout << "FAILURE" << endl;
		}
		else{
			cout << "SUCCESS" << endl;
		}
	}
	else{
		if (sb[1] == sa[1] && (cnta == 1 || cnta == 2)){
			cout << "SUCCESS" << endl;
		}
		else{
			cout << "FAILURE" << endl;
		}
	}

	return 0;
}