#D5092. LRUD Game
LRUD Game
LRUD Game
We have a rectangular grid of squares with H horizontal rows and W vertical columns. Let (i,j) denote the square at the i-th row from the top and the j-th column from the left. On this grid, there is a piece, which is initially placed at square (s_r,s_c).
Takahashi and Aoki will play a game, where each player has a string of length N. Takahashi's string is S, and Aoki's string is T. S and T both consist of four kinds of letters: L
, R
, U
and D
.
The game consists of N steps. The i-th step proceeds as follows:
- First, Takahashi performs a move. He either moves the piece in the direction of S_i, or does not move the piece.
- Second, Aoki performs a move. He either moves the piece in the direction of T_i, or does not move the piece.
Here, to move the piece in the direction of L
, R
, U
and D
, is to move the piece from square (r,c) to square (r,c-1), (r,c+1), (r-1,c) and (r+1,c), respectively. If the destination square does not exist, the piece is removed from the grid, and the game ends, even if less than N steps are done.
Takahashi wants to remove the piece from the grid in one of the N steps. Aoki, on the other hand, wants to finish the N steps with the piece remaining on the grid. Determine if the piece will remain on the grid at the end of the game when both players play optimally.
Constraints
- 2 \leq H,W \leq 2 \times 10^5
- 2 \leq N \leq 2 \times 10^5
- 1 \leq s_r \leq H
- 1 \leq s_c \leq W
- |S|=|T|=N
- S and T consists of the four kinds of letters
L
,R
,U
andD
.
Input
Input is given from Standard Input in the following format:
H W N s_r s_c S T
Output
If the piece will remain on the grid at the end of the game, print YES
; otherwise, print NO
.
Examples
Input
2 3 3 2 2 RRL LUD
Output
YES
Input
4 3 5 2 2 UDRRR LLDUD
Output
NO
Input
5 6 11 2 1 RLDRRUDDLRL URRDRLLDLRD
Output
NO
inputFormat
Input
Input is given from Standard Input in the following format:
H W N s_r s_c S T
outputFormat
Output
If the piece will remain on the grid at the end of the game, print YES
; otherwise, print NO
.
Examples
Input
2 3 3 2 2 RRL LUD
Output
YES
Input
4 3 5 2 2 UDRRR LLDUD
Output
NO
Input
5 6 11 2 1 RLDRRUDDLRL URRDRLLDLRD
Output
NO
样例
2 3 3
2 2
RRL
LUD
YES