import java.util.*;
import java.lang.*;
import java.io.*;

class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(br.readLine());
        int H = Integer.parseInt(st.nextToken());
        int W = Integer.parseInt(st.nextToken());
        char[][] grid = new char[H][W];

        for (int i=0; i<H; i++) {
            st = new StringTokenizer(br.readLine());
            String S = st.nextToken();
            for (int j=0; j<W; j++) {
                grid[i][j] = S.charAt(j);
            }
        }

        int count = 0;

        for (int i=0; i<H; i++) {
            int h1 = i;
            for (int j=h1; j<H; j++) {
                int h2 = j;
                for (int l=0; l<W; l++) {
                    int w1 = l;
                    for (int k=w1; k<W; k++) {
                        int w2 = k;
                        for (int x = h1; x<h2; x++) {
                            for (int y = w1; y<w2; y++) {
                                if (grid[x][y] == grid[h1+h2-x][w1+w2-y]) {
                                    count ++;
                                    System.out.println(x + " " +y);
                                }
                            }
                        }
                    }
                }
            }
        }

        System.out.println(count);
        

            
            
            
    

        

        

        
    }
}