题目描述
Problem Statement
There is a two-dimensional plane. For integers r and c between 1 and 9, there is a pawn at the coordinates (r,c) if the c-th character of S_{r} is #, and nothing if the c-th character of S_{r} is ..
Find the number of squares in this plane with pawns placed at all four vertices.
Input
The input is given from Standard Input in the following format:
S_1
S_2
$\vdots$
S_9
Output
Print the answer.
Constraints
- Each of $S_1,\ldots,S_9$ is a string of length 9 consisting of # and ..
Sample Input 1
.......
.......
.........
.......#.
.....#...
........#
......#..
.........
.........
Sample Output 1
2
The square with vertices (1,1), (1,2), (2,2), and (2,1) have pawns placed at all four vertices.
The square with vertices (4,8), (5,6), (7,7), and (6,9) also have pawns placed at all four vertices.
Thus, the answer is 2.
Sample Input 2
.#.......
.#......
.#.......
.........
....#.#.#
.........
....#.#.#
........#
.........
Sample Output 2
3
输入格式
见题面 Input 部分
输出格式
见题面 Output 部分