Problem:
Score : 400 points

Problem Statement

There are N squares arranged in a row, numbered 1, 2, ..., N from left to right.
You are given a string S of length N consisting of . and #. If the i-th character of S is #, Square i contains a rock; if the i-th character of S is ., Square i is empty.

In the beginning, Snuke stands on Square A, and Fnuke stands on Square B.

You can repeat the following operation any number of times:

Choose Snuke or Fnuke, and make him jump one or two squares to the right. The destination must be one of the squares, and it must not contain a rock or the other person.

You want to repeat this operation so that Snuke will stand on Square C and Fnuke will stand on Square D.

Determine whether this is possible.

Constraints

4 \leq N \leq 200\ 000

S is a string of length N consisting of . and #.

1 \leq A, B, C, D \leq N

Square A, B, C and D do not contain a rock.

A, B, C and D are all different.

A < B

A < C

B < D

Input

Input is given from Standard Input in the following format:

N A B C D
S

Output

Print Yes if the objective is achievable, and No if it is not.

Sample Input 1

7 1 3 6 7
.#..#..

Sample Output 1

Yes

The objective is achievable by, for example, moving the two persons as follows. (A and B represent Snuke and Fnuke, respectively.)

A#B.#..

A#.B#..

.#AB#..

.#A.#B.

.#.A#B.

.#.A#.B

.#..#AB

Sample Input 2

7 1 3 7 6
.#..#..

Sample Output 2

No

Sample Input 3

15 1 3 15 13
...#.#...#.#...

Sample Output 3

Yes

Solution in Java8 (OpenJDK 1.8.0) (judge verdict: Wrong Answer)

import java.util.*;

class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		int A = sc.nextInt()-1;
		int B = sc.nextInt()-1;
		int C = sc.nextInt()-1;
		int D = sc.nextInt()-1;
		String S = sc.next();
		if (C<D) {
			if (check(A,B,S) && check(B,D,S)) {
				System.out.println("Yes");
			} else {
				System.out.println("No");
			}
		} else {
			if (check(A,B,S) && check(B,D,S) && check(D,C,S) && canjump(B,D,S)) {
				System.out.println("Yes");
			} else {
				System.out.println("No");
			}
		}
	}

	public static boolean check(int s, int g,String S) {
		int flag=0;
		for (int i=s+1;i<g;i++) {
			if (S.charAt(i)=='#') {
				if (flag==0) {
					flag=1;
				} else {
					return false;
				}
			} else {
				flag=0;
			}
		}
		return true;
	}

	public static boolean canjump(int s, int g, String S){
		int flag=0;
		for (int i=s+1;i<g;i++) {
			if (S.charAt(i)=='.') {
				if (flag==0) {
					flag=1;
				} else {
					return true;
				}
			} else {
				flag=0;
			}
		}
		if (flag==1 && S.charAt(g+1)=='.') {
			return true;
		}
		return false;
	}
}