import java.util.*;

/**
 * Created by poly on 11/29/14.
 */
public class Main {
    static Set<String> cand(Set<String> set) {
        Set<String> list = new HashSet<String>();
        for (String s : set) {
            String a = "" + s.charAt(1) + s.charAt(0) + s.charAt(2);
            String b = "" + s.charAt(0) + s.charAt(2) + s.charAt(1);
            list.add(a);
            list.add(b);
        }
        return list;
    }

    public static void main(String[] argv) {
        Scanner scanner = new Scanner(System.in);
        String before = scanner.next();
        int n = scanner.nextInt();
        String after = scanner.next();
        if (n == 0) {
            if (after.equals(before)) {
                System.out.println("FAILURE");
            } else {
                System.out.println("SUCCESS");
            }
            return;
        }
        Set<String> input = new HashSet<String>();
        input.add(before);
        Set<String> one = cand(input);
        if (n % 2 == 1) {
            if (one.contains(after)) {
                System.out.println("FAILURE");
            } else {
                System.out.println("SUCCESS");
            }
            return;
        }
        Set<String> two = cand(one);
        if (two.contains(after)) {
            System.out.println("FAILURE");
        } else {
            System.out.println("SUCCESS");
        }
    }
}