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 C# (Mono 4.6.2.0) (judge verdict: Runtime Error)

using System;
    public class Program
    {
        static void Main(string[] args) {
            var line = Console.ReadLine().Split(' ');
            var s = Console.ReadLine();

            var a = int.Parse(line[1]);
            var b = int.Parse(line[2]);
            var c = int.Parse(line[3]);
            var d = int.Parse(line[4]);

            var aRoot = s.Substring(a - 1, c - 1);
            var bRoot = s.Substring(b - 1, d - 1);

            if (IsOk(aRoot) || IsOk(bRoot)) {
                Console.WriteLine("Yes");
            } else {
                Console.WriteLine("No");
            }

        }

        private static bool IsOk(string root) {
            if (root.Length == 0) return true;
            if (root[0] == '.') return IsOk(root.Substring(1));
            if (root[1] == '.') return IsOk(root.Substring(2));
            return false;
        }
    }