3386: 【Div2】abc400d-Takahashi the Wall Breaker
[Creator : ]
Description
Sample Input Copy
10 10
..........
#########.
#.......#.
#..####.#.
##....#.#.
#####.#.#.
.##.#.#.#.
###.#.#.#.
###.#.#.#.
#.....#...
1 1 7 1
Sample Output Copy
1
10 10
..........
#########.
#.......#.
#..####.#.
##....#.#.
#####.#.#.
.##.#.#.#.
###.#.#.#.
###.#.#.#.
#.....#...
1 1 7 1
1