#include <iostream>
#include <algorithm>
#include <functional>
#include <string>
#include <limits.h>
#include <vector>
#include <numeric>
using namespace std;

bool check(string from, int cnt, string to){
	const int move[3][3][3] = {{{1,0,2},{0,2,1},{0,0,0}},
							   {{0,1,2},{1,2,0},{2,0,1}},
							   {{0,2,1},{1,0,2},{2,1,0}}};
	const int youso[3] = {2,3,3};
	string test = "aaa";
	int use;
	
	if(cnt == 0){
		return from == to;
	}else{
		if(cnt == 1){
			use = 0;
		}else if(cnt % 2 == 0){
			use = 1;
		}else{
			use = 2;
		}
		
		for(int i=0; i<youso[use]; i++){
			for(int ii=0; ii<3; ii++){
				test[move[use][i][ii]] = from[ii];
			}
			if(to == test){
				return true;
			}
		}
	}
	
	return false;
}

int main(){
	string from,to;
	int cnt;
	cin >> from >> cnt >> to;
	
	if(check(from, cnt, to)){
		cout << "FAILURE" << endl;
	}else{
		cout << "SUCCESS" << endl;
	}
	
	return 0;
}