AtCoder Grand Contest 004
C
AND Grid
AtCoder
⌀ 2367
原题
← BD →
翻译中…

Problem Statement

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Snuke and Ciel went to a strange stationery store. Each of them got a transparent graph paper with $H$ rows and $W$ columns.

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Snuke painted some of the cells red in his paper. Here, the cells painted red were 4-connected, that is, it was possible to traverse from any red cell to any other red cell, by moving to vertically or horizontally adjacent red cells only.

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Ciel painted some of the cells blue in her paper. Here, the cells painted blue were 4-connected.

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Afterwards, they precisely overlaid the two sheets in the same direction. Then, the intersection of the red cells and the blue cells appeared purple.

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You are given a matrix of letters $a_{ij}$ ($1≤i≤H$, $1≤j≤W$) that describes the positions of the purple cells. If the cell at the $i$-th row and $j$-th column is purple, then $a_{ij}$ is #, otherwise $a_{ij}$ is .. Here, it is guaranteed that no outermost cell is purple. That is, if $i=1, H$ or $j = 1, W$, then $a_{ij}$ is ..

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Find a pair of the set of the positions of the red cells and the blue cells that is consistent with the situation described. It can be shown that a solution always exists.

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Constraints

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  • $3≤H,W≤500$
  • $a_{ij}$ is # or ..
  • If $i=1,H$ or $j=1,W$, then $a_{ij}$ is ..
  • At least one of $a_{ij}$ is #.
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Input

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The input is given from Standard Input in the following format:

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H W
a_{11}...a_{1W}
:
a_{H1}...a_{HW}

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Output

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Print a pair of the set of the positions of the red cells and the blue cells that is consistent with the situation, as follows:

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  • The first $H$ lines should describe the positions of the red cells.
  • The following $1$ line should be empty.
  • The following $H$ lines should describe the positions of the blue cells.
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The description of the positions of the red or blue cells should follow the format of the description of the positions of the purple cells.

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样例

Input #1
5 5
.....
.#.#.
.....
.#.#.
.....
Output #1
.....
#####
#....
#####
.....

.###.
.#.#.
.#.#.
.#.#.
.....
One possible pair of the set of the positions of the red cells and the blue cells is as follows: ![image](https://atcoder.jp/img/agc/004/gatbantar/C_1.png)
Input #2
7 13
.............
.###.###.###.
.#.#.#...#...
.###.#...#...
.#.#.#.#.#...
.#.#.###.###.
.............
Output #2
.............
.###########.
.###.###.###.
.###.###.###.
.###.###.###.
.###.###.###.
.............

.............
.###.###.###.
.#.#.#...#...
.###.#...#...
.#.#.#.#.#...
.#.#########.
.............
One possible pair of the set of the positions of the red cells and the blue cells is as follows: ![image](https://atcoder.jp/img/agc/004/gatbantar/C_2.png)
题目信息
题号
agc004_c
时间限制
2 s
内存限制
256 MB

题面与样例版权归 AtCoder 及出题人所有;中文翻译由 AI 生成(CI 管线),如有出入请以原文为准。