MuOnline

int health = 100;
int bitcoins = 0;
List<string> rooms = Console.ReadLine()
                 .Split('|')
                 .ToList();

for (int i = 0; i<rooms.Count; i++)
{
    string[] ROOM = rooms[i].Split().ToArray();
    int number = int.Parse(ROOM[1]);
    string command = ROOM[0];
    int amount = 0;
    if (command == "potion")
    {
        int previousHealth = health;
        health += number;
        if (health > 100)
        {
            amount = Math.Abs(100-previousHealth);

            Console.WriteLine($"You healed for {amount} hp.");
            health = 100;
            Console.WriteLine($"Current health: {health} hp.");
        }
        else if (health <= 100)
        {
            Console.WriteLine($"You healed for {number} hp.");
            Console.WriteLine($"Current health: {health} hp.");
        }
    }
    else if (command == "chest")
    {
        bitcoins+=number;
        Console.WriteLine($"You found {number} bitcoins.");
    }
    else
    {
        health-=number;
        if (health >0)
        {
            Console.WriteLine($"You slayed {command}.");

        }
        else if (health <=0)
        {
            Console.WriteLine($"You died! Killed by {command}.");
            Console.WriteLine($"Best room: {i+1}");
            return;

        }
    }
}
Console.WriteLine("You've made it!");
Console.WriteLine($"Bitcoins: {bitcoins}");
Console.WriteLine($"Health: {health}");