import java.io.BufferedReader;
import java.io.FileReader;

public class RunMe {

    public static int prestosInLargest = 0;

    public static void debugArrayPrint(int[][] input) {

        for (int i = 0; i < input.length; i++) {

            for (int j = 0; j < input[i].length; j++) {

                System.out.print(input[i][j] + " ");
            }
            System.out.print("\n");
        }
    }
    public static void checkSubSection(int[][] input, int i, int j) {

        //System.out.println(i + " " + j);
        int iItor = i;
        int jItor = j;
        int width = 0;
        int height = 0;
        int minHeight = Integer.MAX_VALUE;
        while ((jItor < input[iItor].length) && (input[iItor][jItor] == 1)) {

            while ((iItor < input.length) && (input[iItor][jItor] == 1) && (height < minHeight)) {

                iItor++;
                height++;
            }
            jItor++;
            width++;
            minHeight = height;
            iItor = i;
            height = 0;
            //System.out.println("min wid " + minHeight + " " + width);
            if ((minHeight * width) > prestosInLargest) {

                prestosInLargest = (minHeight * width);
                System.out.println("Found new largest! Size: " + prestosInLargest + " i: " + (i + 1) + " j: " + (j + 1) + " height: " + minHeight + " width: " + width);
            }
        }
    }
    public static void main(String[] args) {

        try {

            String line;
            int totalLines = 0;
            int width = 0;
            int iterator = 0;
            FileReader fileReader = new FileReader("city_grid.txt");
            BufferedReader bufferedReader = new BufferedReader(fileReader);
            // find the total number of objects per line
            line = bufferedReader.readLine();
            totalLines++;
            width = line.split("   ").length;
            // find the number of lines
            while ((line = bufferedReader.readLine()) != null) { totalLines++; }
            int inputArray[][] = new int[totalLines][width];
            fileReader.close();
            fileReader = new FileReader("city_grid.txt");
            bufferedReader = new BufferedReader(fileReader);
            while ((line = bufferedReader.readLine()) != null) {

                String[] tokens = line.split("   ");
                for (int i = 0; i < tokens.length; i++) {

                    if (tokens[i].equals("O")) {

                        inputArray[iterator][i] = 0;
                    }
                    else if (tokens[i].equals("P")) {

                        inputArray[iterator][i] = 1;
                    }
                    else { System.err.println("UH OH! '" + tokens[i] + "'"); }
                }
                iterator++;
            }
            //debugArrayPrint(inputArray);
            for (int i = 0; i < inputArray.length; i++) {

                for (int j = 0; j < inputArray[i].length; j++) {

                    checkSubSection(inputArray, i, j);
                }
            }
        } catch (Exception e) {

            e.printStackTrace();
        }
    }
}