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.Scanner;

public class Main {

    private static final Scanner  SC = new Scanner(System.in);
    private static final int N = SC.nextInt();
    private static final int A = SC.nextInt();
    private static final int B = SC.nextInt();
    private static final int C  = SC.nextInt();
    private static final int D  = SC.nextInt();
    private static final String MAP = SC.next();


    public static void main(String[] args) {
        Player snuke = new Player(N,MAP,A,C);
        Player fnuke = new Player(N,MAP,B,D);
        boolean canGetTo;

        if(fnuke.hasTwoRocks() || snuke.hasTwoRocks()) {
            canGetTo = false;
        }else{
            if (C < D) {
                canGetTo = true;
            } else {
                canGetTo = fnuke.canBeJumpedOver();
            }
        }

        if (canGetTo) {
            System.out.println("Yes");
        } else {
            System.out.println("No");
        }
    }
}

class Player{
    private boolean existsTwoRocks;
    private boolean jumpedOver;

    public Player(int mapSize, String wholeMap,int start,int goal){
        start--;
        goal--; //substringで使えるようなマス番号に変換
        String map = wholeMap.substring(start, goal);
        if(start!=0)  start--;
        if(goal !=mapSize-1) goal++; //マップの拡張
        String expandedMap = wholeMap.substring(start, goal);

        this.existsTwoRocks = map.contains("##");
        this.jumpedOver = expandedMap.contains("...");
    }

    public boolean hasTwoRocks() {
        return existsTwoRocks;
    }

    public boolean canBeJumpedOver() {
        return jumpedOver;
    }

}