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

namespace _3rdProblem
{
    class Program
    {
        static void Main(string[] args)
        {
            string line = Console.ReadLine();
            string[] array = line.Split(' ');
            int r = int.Parse(array[0]);
            int c = int.Parse(array[1]);
            int[,] matrix = new int[r, c];
            int num = 0;

            for (int i = r - 1; i >= 0; i--)
            {
                for (int j = 0; j < c; j++)
                {
                    matrix [i,j] = num;
                    num += 3;

                }
                num = matrix[i, 1];
            }

            //for (int i = 0; i < r; i++)
            //{
            //    for (int j = 0; j < c; j++)
            //    {
            //        if (j != c - 1)
            //        {
            //            Console.Write(matrix[i, j] + " ");
            //        }
            //        else
            //        {
            //            Console.Write(matrix[i, j]);
            //        }
            //    }
            //    Console.WriteLine();
            //}

            int iterations = int.Parse(Console.ReadLine());
            string[] arr = new string[2];
            string command;
            int moves;
            int sum = 0;
            int startRow = r - 1;
            int startCol = 0;
            List <string> items = new List<string>();
            string checkItem;


            for (int ii = 0; ii < iterations; ii++)
            {
                line = Console.ReadLine();
                arr = line.Split(' ');
                command = arr[0];
                moves = int.Parse(arr[1]);




                if (command == "UR" || command == "RU")
                {

                        for (int i = 0; i < moves; i++)
                        {
                        if (startCol < 0 || startCol >= c || startRow < 0 || startRow >= r)
                        {
                            startRow++;
                            startCol--;
                            break;
                        }
                        checkItem = startRow.ToString() + startCol.ToString();
                        if (items.Contains(checkItem) == false)
                        {
                            sum += matrix[startRow, startCol];
                            items.Add(checkItem);
                        }
                        if (i == moves - 1)
                            {
                                break;
                            }
                            startRow--;
                            startCol++;

                        }


                }
                if (command == "RD" || command == "DR")
                {

                        for (int i = 0; i < moves; i++)
                        {
                        if (startCol < 0 || startCol >= c || startRow < 0 || startRow >= r)
                        {
                            startRow--;
                            startCol--;
                            break;
                        }
                        checkItem = startRow.ToString() + startCol.ToString();
                            if (items.Contains(checkItem) == false)
                            {
                                sum += matrix[startRow, startCol];
                                items.Add(checkItem);
                            }
                        if (i == moves - 1)
                        {
                            break;
                        }
                        startRow++;
                        startCol++;

                    }

                }
                if (command == "DL" || command == "LD")
                {
                        for (int i = 0; i < moves; i++)
                        {
                        if (startCol < 0 || startCol >= c || startRow < 0 || startRow >= r)
                        {
                            startRow--;
                            startCol++;
                            break;
                        }
                        checkItem = startRow.ToString() + startCol.ToString();
                            if (items.Contains(checkItem) == false)
                            {
                                sum += matrix[startRow, startCol];
                                items.Add(checkItem);
                            }

                        if (i == moves - 1)
                        {
                            break;
                        }

                        startRow++;
                        startCol--;
                        }
                    }



                if (command == "UL" || command == "LU")
                {
                        for (int i = 0; i < moves; i++)
                        {
                        if (startCol < 0 || startCol >= c || startRow < 0 || startRow >= r)
                        {
                            startRow++;
                            startCol++;
                            break;
                        }
                            checkItem = startRow.ToString() + startCol.ToString();
                            if (items.Contains(checkItem) == false)
                            {
                                sum += matrix[startRow, startCol];
                                items.Add(checkItem);
                            }
                        if (i == moves - 1)
                        {
                            break;
                        }
                        startRow--;
                        startCol--;
                        }


                }

            }

            Console.WriteLine(sum);
            Console.Read();

        }