using System;

public class Program

{

    public static void Main()

    {

        while(player1.health>0);

        Ship player1 = new Ship(100);

        player1.TakeDamage();

        Console.Write("P1: "+player1.health);

    }

    public class Ship{

    public int health;

    public Ship(int h){

    health = h; 

    }

    public void TakeDamage(){

    health-=10; 

    }

    }

}