B'A tourist wants to visit country Zeydabad for Zbazi (a local game in Zeydabad). The country Zeydabad is a rectangular table consisting of n rows and m columns. Each cell on the country is either 'z ' or '. '. The tourist knows this country is named Zeydabad because there are lots of ' 'Z-pattern"s in the country. A ' 'Z-pattern" is a square which anti-diagonal is completely filled with 'z ' and its upper and lower rows are also completely filled with 'z '. All other cells of a square can be arbitrary. Note that a ' 'Z-pattern" can consist of only one cell (see the examples). So he wants to count the number of ' 'Z-pattern"s in the country (a necessary skill for Zbazi). Now your task is to help tourist with counting number of ' 'Z-pattern"s. As input/output can reach huge size it is recommended to use fast input/output methods: for example, prefer to use gets/scanf/printf instead of getline/cin/cout in C++, prefer to use BufferedReader/PrintWriter instead of Scanner/System.out in Java. The first line contains two integers n, xe2 x80 x89m (1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89n, xe2 x80 x89m xe2 x80 x89 xe2 x89 xa4 xe2 x80 x893000) -- the number of rows and columns respectively. Each of the next n lines contains m characters 'z ' or '. ' -- the description of Zeydabad. Print the only integer a -- the number of ' 'Z-pattern"s in Zeydabad.'...