You are given an n*m grid which contains lower case English letters. How many times does the phrase "saba" appear horizontally, vertically, and diagonally in the grid?

Input format

• First line: Two integer n and m, where n denotes (1 <= n,m <= 100) the number of rows and m denotes the number of columns in the grid
• Next n lines: Each line must contain a string of length m which contains lower-case English letters only

Output format

Print the number of times the word “saba” appears in the grid.