import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;

/**
 * Simple parser for the correlation data
 */
public class ParseFile {
  /**
   * Parse the file
   * @param _filename Filename
   */
  public static void parse(String _filename) {
    try {
      Scanner input = new Scanner(new File(_filename));

      // Ignore top comments
      String tag = "#";
      while(tag.equals("#")) {
        input.nextLine();
        tag = input.next();
      }

      // Read columns and rows
      int cols = Integer.parseInt(tag);
      input.nextLine();
      int rows = input.nextInt();
      input.nextLine();

      System.out.printf("%d rows and %d columns\n", rows, cols);

      // Read column headers
      for(int i = 0; i < cols; ++i) {
        String header = input.nextLine();
        System.out.printf("Header %d: %s\n", i, header);
      }

      // Read data
      for(int i = 0; i < rows; ++i) {
        for(int j = 0; j < cols; ++j) {
          double d = input.nextDouble();
          System.out.printf("%15.2f", d);
        }
        System.out.println();
      }
    }
    catch(FileNotFoundException e) {
      System.out.println("File does not exist");
    }
  }

  /**
   * Main parses the file specified as a command-line argument
   * @param _args Command-line arguments
   */
  public static void main(String[] _args) {
    parse(_args[0]);
  }
}