import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class Main {
	public static void main(String[] args) {
	      BufferedReader stdReader =new BufferedReader(new InputStreamReader(System.in));
	      try {
	    	  String line1 = stdReader.readLine();
	    	  int n = Integer.parseInt(stdReader.readLine());
	    	  String line2 = stdReader.readLine();
	    	  int num1 = 0;
	    	  int num2 = 0;
	    	  for(int i=0;i<3;i++){
	    		  if(line1.charAt(i) == '○') num1++;
	    		  if(line2.charAt(i) == '○') num2++;    		  
	    	  }
	    	  if(num1 != num2){
	    		  System.out.println("SUCCESS");
	    		  return;
	    	  }
	    	  if(line1.equals(line2)){
	    	  }else if((line1.charAt(0)==line2.charAt(2))&&n>=2){
	    		  n-=2;
	    	  }else if((line1.charAt(0)!=line2.charAt(1)||line1.charAt(1)!=line2.charAt(2))&&n>=1){
	    		  n--;
	    	  }
	    	  if(n % 2 == 0) System.out.println("FAILURE");
	    	  else System.out.println("SUCCESS");
	      } catch (IOException e) {
			e.printStackTrace();
	      }
	}
}