While playing in his favourite text editor, Daniel decided to draw a picture that was characters high and
characters wide. The picture consists solely of characters `.`

and `*`

such that characters `*`

form
some non-overlapping rectangles. The rectangles don’t even touch each other on their sides or corners.

Help Daniel count the number of rectangles drawn on the picture.

#### Input

The first line contains two integers and from task description.

Each of the next lines contains characters `.`

or `*`

which represent the picture that Daniel drew.

#### Output

In a single line you should output the number of rectangles on the picture.

#### Scoring

In the test cases worth a total of of the points, all rectangles will consist of a single `*`

character.

In the test cases worth additional of the points, it will hold .

#### Sample Input 1

```
6 7
***....
***..**
.....**
.***.**
.***...
.***...
```

#### Sample Output 1

`3`

#### Sample Input 2

```
3 3
*.*
...
*.*
```

#### Sample Output 2

`4`

#### Sample Input 3

```
1 10
.*.**.***.
```

#### Sample Output 3

`3`

## Comments