SuperMario

using System;

namespace T02.SuperMario1
{
    class Program
    {
        static void Main(string[] args)
        {
            int lives = int.Parse(Console.ReadLine());
            int rows = int.Parse(Console.ReadLine());
            char[][] maze = new char[rows][];
            int marioRow = -1;
            int marioCol = -1;
            bool isDead = false;
            for (int row = 0; row < rows; row++)
            {
                string currentRow = Console.ReadLine();
                maze[row] = new char[currentRow.Length];
                for (int col = 0; col < currentRow.Length; col++)
                {
                    maze[row][col] = currentRow[col];
                    if (maze[row][col] == 'M')
                    {
                        marioRow = row;
                        marioCol = col;
                    }
                }
            }

            while (true)
            {
                string[] command = Console.ReadLine().Split(' ', StringSplitOptions.RemoveEmptyEntries);

                string direction = command[0];
                int monsterRow = int.Parse(command[1]);
                int monsterCol = int.Parse(command[2]);

                maze[monsterRow][monsterCol] = 'B';
                maze[marioRow][marioCol] = '-';
                if (direction == "W")
                {
                    if (IsValidIndex(marioRow - 1, rows))
                    {
                        marioRow -= 1;
                    }
                }
                else if (direction == "S")
                {
                    if (IsValidIndex(marioRow + 1, rows))
                    {
                        marioRow += 1;
                    }
                }
                else if (direction == "A")
                {
                    if (IsValidIndex(marioCol - 1, maze[marioRow].Length))
                    {
                        marioCol -= 1;
                    }
                }
                else if (direction == "D")
                {
                    if (IsValidIndex(marioCol + 1, maze[marioRow].Length))
                    {
                        marioCol += 1;
                    }
                }
                lives--;
                if (lives <= 0)
                {
                    maze[marioRow][marioCol] = 'X';
                    isDead = true;
                    break;
                }
                if (maze[marioRow][marioCol] == 'B')
                {
                    lives-=2;
                    maze[marioRow][marioCol] = '-';
                    if (lives <= 0)
                    {
                        maze[marioRow][marioCol] = 'X';
                        isDead = true;
                        break;
                    }
                }
                else if (maze[marioRow][marioCol] == 'P')
                {
                    maze[marioRow][marioCol] = '-';
                    break;
                }

            }
            if (isDead)
            {
                Console.WriteLine($"Mario died at {marioRow};{marioCol}.");
            }
            else
            {
                Console.WriteLine($"Mario has successfully saved the princess! Lives left: {lives}");
            }

            foreach (char[] row in maze)
            {
                Console.WriteLine(string.Join("", row));
            }
        }
        public static bool IsValidIndex(int index, int length) =>
            index >= 0 && index < length;

    }
}