Creating dongeon game

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Visual-Studio

C#7.0

i'm trying to create simple dongeon game in c#. the player should chose between 2 doors if he chose the first door he should lose one point and if he chose the second door he should get a point and if he chose the second door he should lose the point when he reach to 0 point the game should be over and the codition of chosing the doors should repeat 20 times

What I have tried:

<blockquote class="quote"><div class="op">Quote:</div>int  health, door,level;
health = 20;
level = 20;
string name;

Console.WriteLine("write your name ");
name = Convert.ToString(Console.ReadLine());
Console.WriteLine("hello " + name + " welcome to the ddungeon \n");

Console.WriteLine("you want to open the the right door (press 1) or the left one (press 2)");
door = Convert.ToInt32(Console.ReadLine());

while(level < 20 && health > 0)
{
    door = Convert.ToInt32(Console.ReadLine());
    if (door == 1)
    {
        Console.WriteLine("you have chance ");
        Console.WriteLine(health);
        health++;
        level++;
    }
    else if (door == 2)
    {
      
        health--;
        level--;
        Console.WriteLine(health);
    }
}

Console.Read();</blockquote>