LoverOf3

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Problem3
{
    class LoverOf3
    {
        static void Main()
        {
            var rowsAndCols = Console.ReadLine().Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
            int rows = int.Parse(rowsAndCols[0]);
            int cols = int.Parse(rowsAndCols[1]);

            int[,] matrix = FillMatrix(rows, cols);

            int numberOfDirections = int.Parse(Console.ReadLine());
            int currentRow = matrix.GetLength(0) - 1;
            int currentCol = 0;
            long sum = 0;

            for (int i = 0; i < numberOfDirections; i++)
            {
                var directionAndStep = Console.ReadLine().Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
                string currentDirection = directionAndStep[0];
                int currentStep = int.Parse(directionAndStep[1]);

                if (currentDirection == "RU" || currentDirection == "UR")
                {
                    for (int j = 0; j < currentStep-1; j++)
                    {

                        currentRow--;
                        currentCol++;

                        if (currentRow < 0 || currentRow >= matrix.GetLength(0)
                           || currentCol < 0 || currentCol >= matrix.GetLength(1))
                        {
                            if (currentRow < 0)
                            {
                                currentRow++;
                                currentCol--;
                                break;
                            }
                            if (currentCol >= matrix.GetLength(1))
                            {
                                currentCol--;
                                currentRow++;
                                break;
                            }
                        }
                        else
                        {
                            int number = matrix[currentRow, currentCol];
                            sum += number;

                        }
                        matrix[currentRow, currentCol] = 0;
                    }
                }

                else if (currentDirection == "LU" || currentDirection == "UL")
                {
                    for (int j = 0; j < currentStep-1; j++)
                    {

                        currentRow--;
                        currentCol--;

                        if (currentRow < 0 || currentRow >= matrix.GetLength(0)
                           || currentCol < 0 || currentCol >= matrix.GetLength(1))
                        {
                            if (currentRow < 0)
                            {
                                currentRow++;
                                currentCol++;

                                break;

                            }
                            if (currentCol < 0)
                            {
                                currentCol++;
                                currentRow++;

                                break;

                            }
                        }

                        else
                        {
                            int number = matrix[currentRow, currentCol];
                            sum += number;
                        }
                        matrix[currentRow, currentCol] = 0;
                    }
                }

                else if (currentDirection == "DL" || currentDirection == "LD")
                {

                    for (int j = 0; j < currentStep - 1; j++)
                    {

                        currentRow++;
                        currentCol--;

                        if (currentRow < 0 || currentRow >= matrix.GetLength(0)
                           || currentCol < 0 || currentCol >= matrix.GetLength(1))
                        {
                            if (currentRow >= matrix.GetLength(0))
                            {
                                currentRow--;
                                currentCol++;

                                break;

                            }
                            if (currentCol < 0)
                            {
                                currentCol++;
                                currentRow--;

                                break;

                            }
                        }
                        else
                        {
                            int number = matrix[currentRow, currentCol];
                            sum += number;
                            //sum += matrix[currentRow, currentCol];

                        }
                        matrix[currentRow, currentCol] = 0;
                    }
                }

                else if (currentDirection == "DR" || currentDirection == "RD")
                {
                    for (int j = 0; j < currentStep - 1; j++)
                    {

                        currentRow++;
                        currentCol++;


                        if (currentRow < 0 || currentRow >= matrix.GetLength(0)
                           || currentCol < 0 || currentCol >= matrix.GetLength(1))
                        {
                            if (currentRow >= matrix.GetLength(0))
                            {
                                currentRow--;
                                currentCol--;

                                break;

                            }
                            if (currentCol >= matrix.GetLength(1))
                            {
                                currentCol--;
                                currentRow--;

                                break;

                            }
                        }
                        else
                        {
                            int number = matrix[currentRow, currentCol];
                            sum += number;
                        }
                        matrix[currentRow, currentCol] = 0;

                    }
                }
            }

            Console.WriteLine(sum);

        }

        static int[,] FillMatrix(int rows, int cols)
        {
            int[,] matrix = new int[rows, cols];
            int startRowsNumber = 0;

            for (int row = matrix.GetLength(0) - 1; row >= 0; row--)
            {
                int number = startRowsNumber;
                for (int col = 0; col < matrix.GetLength(1); col++)
                {
                    matrix[row, col] = number;
                    number += 3;
                }
                startRowsNumber += 3;
            }
            return matrix;
        }

        static void PrintMatrix(int[,] matrix)
        {
            for (int row = 0; row < matrix.GetLength(0); row++)
            {
                for (int col = 0; col < matrix.GetLength(1); col++)
                {
                    Console.Write("{0} ", matrix[row, col]);
                }
                Console.WriteLine();
            }
        }
    }
}