using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

    }

    public class Table

    {

        public int Rows;

        public int Cols;

        public List<Cell> cells;

​

        public Table(int rows, int cols)

        {

            Rows = rows;

            Cols = cols;

            cells = new List<Cell>(rows * cols);

        }

        public string GetStringValue(int row, int col)

        {

            if(cells[row*col].Kind == CellKind.Text)

            {

                return cells[row*col].Kind.ToString();

            }

            throw new Exception("error");

        }

    }

​

    public class Cell

    {

        public CellKind Kind;

    }

​

    public enum CellKind

    {

        Text,

        Number,

        Expre,

    }

}