using System;
using System.Collections.Generic;

namespace Program
{
    public class Virus
    {
        public int Name { get; set; }
        public Virus Parent { get; set; }
        public List<Virus> Infected { get; private set; }
        public int InfectionTurn { get; set; }

        public Virus(int name, int infectionTurn = 0)
        {
            Name = name;
            Infected = new List<Virus>();
            InfectionTurn = infectionTurn;
        }

        public Virus(int name, Virus parent, int infectionTurn = 0) : this(name, infectionTurn)
        {
            Parent = parent;
        }

        public void Infect(Virus virus)
        {
            virus.Parent = this;
            Infected.Add(virus);
        }

        public void PrintInfectionTree(string indent = "")
        {
            Console.WriteLine($"{indent}Virus {Name}");
            foreach (var infected in Infected)
            {
                infected.PrintInfectionTree(indent + "  ");
            }
        }

        public void PrintInfectionTreeWithDepth(int maxDepth, int currentDepth = 0, string indent = "")
        {
            if (currentDepth > maxDepth) return;

            Console.WriteLine($"{indent}Virus {Name}");
            foreach (var infected in Infected)
            {
                infected.PrintInfectionTreeWithDepth(maxDepth, currentDepth + 1, indent + "  ");
            }
        }
    }
}