package yukicoder197;
import java.util.Scanner;
public class Main {
	public static void main(String[] args){
		Scanner sc=new Scanner(System.in);
		String str1=sc.next();
		int n=sc.nextInt();
		String str2=sc.next();
		int cntHasCoin1=0;
		int cntHasCoin2=0;
		for(int i=0;i<3;i++){
			if(str1.charAt(i)=='o'){
				cntHasCoin1++;
			}
			if(str2.charAt(i)=='o'){
				cntHasCoin2++;
			}
		}
		if(cntHasCoin1!=cntHasCoin2){
			System.out.println("FAILURE");
		}else if(n==0){
			if(str1.equals(str2)){
				System.out.println("SUCCESS");
			}else{
				System.out.println("FAILURE");
			}
		}else if(n==1){
			if(str1.charAt(0)==str2.charAt(1)&&str1.charAt(1)==str2.charAt(0)){
				System.out.println("FAILURE");
			}else if(str1.charAt(1)==str2.charAt(2)&&str1.charAt(2)==str2.charAt(1)){
				System.out.println("FAILURE");
			}else{
				System.out.println("SUCCESS");
			}
		}else if(n>=2){
			System.out.println("FAILURE");
		}else{
			System.err.println("ERROR");
		}
	}
}