- Time limit: 1.00 s
- Memory limit: 512 MB
You are given a grid of letters. Your task is to calculate, for each letter, the number of square subgrids whose border consists of that letter.
Input
The first line has two integers n and k: the size of the grid and the number of letters. The letters are the first k uppercase letters.
After this, there are n lines that describe the grid. Each line has n letters.
Output
Print k lines: for each letter, the number of subgrids.
Constraints
- 1 \le n \le 3000
- 1 \le k \le 26
Example
Input:
5 3 ABBBC ABABC ABBBC ABBBC CCCCC
Output:
5 14 9