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 Python (3.4.3) (judge verdict: Wrong Answer)

## AからＣ　ＢからＤに移動させたい
## C<D なら簡単

N,A,B,C,D = map(int,input().split())
S = input()
flag = 0
obs = []
esc = []
ans = 1

#ＡとＢで小さいほうを low
if A<B:
    low = A
    mid1 = B
else:
    low = B
    mid1 = A
#ＣとＤで大きいほうをhigh
if C<D:
    high = D
    mid2 = C
else:
    high = C
    mid2 = D



for i in range(low,high):
     if S[i]=="#" and flag == 1:
         ans = 0
         flag = 0
     elif S[i] == "#":
         flag = 1
     else: flag = 0

 # obsに通れない位置を入力
flag = 0
flag2 = 1
if D<C:
    flag2 = 0
    for i in range(B,D):
          if S[i]=="." and flag == 2:
              flag2 = 1
              flag = 0
          elif S[i] == ".":
              flag += 1
          else:
              flag = 0
if flag2 ==0:
    ans = 0


if ans==1:
    print("Yes")
else:
    print("No")