// Arup Guha
// 10/26/2013
// Solution to 2013 NCPC Problem G: Erase Securely

import java.util.*;

public class erase {

	public static void main(String[] args) {

		Scanner stdin = new Scanner(System.in);
		int n = stdin.nextInt();
		String s1 = stdin.next();
		String s2 = stdin.next();

		// Conditions for success - equal or opposite strings, depending on n.
		if ((n%2 == 0 && s1.equals(s2)) || (n%2 == 1 && s1.equals(flip(s2))))
			System.out.println("Deletion succeeded");
		else
			System.out.println("Deletion failed");
	}

	// Returns s' such that s xor s' is all 1s.
	public static String flip(String s) {
		String ans = "";
		for (int i=0; i<s.length(); i++)
			if (s.charAt(i) == '0')
				ans = ans + "1";
			else
				ans = ans + "0";
		return ans;
	}
}