using System;

​

public class Date

{

    private int day;

    private int month;

    private int year;

    public Date(int day,int month, int year)

    {

        this.day=day;

        this.month=month;

        this.year=year;

    }

    public int GetYear()

    {

        return this.year;

    }

    public int GetMonth()

    {

        return this.month;

    }

    public int GetDay()

    {

        return this.day;

    }

    public void SetYear(int year)

    {

        this.year=year;

    }

    public void SetMonth(int month)

    {

        this.month=month;

    }

    public void SetDay(int day)

    {

        this.day=day;

    }

    public int CompareTo(Date other)

    {

        if (this.year > other.year)

            return 1;

        if(this.year < other.year)

            return -1;

        if(this.month > other.month)

            return 1;

        if(this.month < other.month)

            return -1;

        if(this.day > other.day)

            return 1;

        if(this.day < other.day)

            return -1;

        return 0;

    }

}

public class passport

{

private string name;

private int num;

private Date a;

public passport(string name,Date a,int num)

{

this.name =name;

this.a=new Date(a.GetDay(),a.GetMonth(),a.GetYear());

this.num= num;

}

public passport(passport p)

{

    this.name =p.name;

    this.a=new Date(p.a.GetDay(),p.a.GetMonth(),p.a.GetYear());

    this.num= p.num;

}

public override  String ToString()

{   

 return "name: "+this.name+"\nexpiry date: "+this.a+"\nID: "+this.num;

}

public bool noam(Date b)

{

    if(this.a.CompareTo(b)>=0)

        return true;

    return false;

}

public void Set(Date b)

{

this.a=new Date(b.GetDay(),b.GetMonth(),b.GetYear());

    }   

}

public class traveler

{

private passport a;

private bool b ;

public traveler(passport a,bool b)

{

this.a=a;

this.b=b;

}

public void Pay()

{

this.b=true;

}

public bool haspaid()

{

return this.b;

}

public override string ToString ()

{

    return this.a+"\npay: "+this.b;

}

public bool check(Date c)

{

return this.a.noam(c);  

}

}

public class Program

{

    public static void Main()

    {

        Date d1=new Date(12,03,2010);

        d1.SetYear(2000);

        Date d2=new Date(30,01,2002);

        Date d3=new Date(30,01,2002);

        passport a=new passport("noam",d2,2132322);

        traveler c=new traveler(a,false);

        Console.WriteLine(c.ToString());

    }

}