using System;

public class Program

{

    public static void Main()

    {

        var now1 = "11/06/2021 8:30:52 AM";

        DateTime now = DateTime.Parse(now1,System.Globalization.CultureInfo.InvariantCulture);

        var dateString = "11/07/2021 8:30:52 AM";

        DateTime date1 = DateTime.Parse(dateString,System.Globalization.CultureInfo.InvariantCulture);

        var dateString2 = "05/07/2021 8:30:52 AM";

        DateTime date2 = DateTime.Parse(dateString2,System.Globalization.CultureInfo.InvariantCulture);

        var dateString3 = "05/06/2021 8:30:52 AM";

        DateTime date3 = DateTime.Parse(dateString3,System.Globalization.CultureInfo.InvariantCulture);

        var dateString4 = "05/05/2021 8:30:52 AM";

        DateTime date4 = DateTime.Parse(dateString4,System.Globalization.CultureInfo.InvariantCulture);

        var dateString5 = "11/07/2020 8:30:52 AM";

        DateTime date5 = DateTime.Parse(dateString5,System.Globalization.CultureInfo.InvariantCulture);

        var dateString6 = "11/06/2020 8:30:52 AM";

        DateTime date6 = DateTime.Parse(dateString6,System.Globalization.CultureInfo.InvariantCulture);

        var dateString7 = "11/05/2020 8:30:52 AM";

        DateTime date7 = DateTime.Parse(dateString7,System.Globalization.CultureInfo.InvariantCulture);

        var dateString8 = "05/07/2019 8:30:52 AM";

        DateTime date8 = DateTime.Parse(dateString8,System.Globalization.CultureInfo.InvariantCulture);

        var dateString9 = "05/06/2019 8:30:52 AM";

        DateTime date9 = DateTime.Parse(dateString9,System.Globalization.CultureInfo.InvariantCulture);

        var dateString10 = "05/05/2019 8:30:52 AM";

        DateTime date10 = DateTime.Parse(dateString10,System.Globalization.CultureInfo.InvariantCulture);

        Console.Write("Now:"+now1+"\n");

        Console.Write(dateString+":"+getAge(date1,now).ToString()+"\n");

        Console.Write(dateString2+":"+getAge(date2,now).ToString()+"\n");

        Console.Write(dateString3+":"+getAge(date3,now).ToString()+"\n");

        Console.Write(dateString4+":"+getAge(date4,now).ToString()+"\n");

        Console.Write(dateString5+":"+getAge(date5,now).ToString()+"\n");

        Console.Write(dateString6+":"+getAge(date6,now).ToString()+"\n");

        Console.Write(dateString7+":"+getAge(date7,now).ToString()+"\n");

        Console.Write(dateString8+":"+getAge(date8,now).ToString()+"\n");

        Console.Write(dateString9+":"+getAge(date9,now).ToString()+"\n");

        Console.Write(dateString10+":"+getAge(date10,now).ToString()+"\n");

    }

    static int getAge(System.DateTime birth,System.DateTime now){

        int y = now.Year-birth.Year;

        int m = now.Month-birth.Month;

        int d = now.Day-birth.Day;

        if((m>6)||(m==6)&&(d>0)){

            y++;

        }else if((m<-6)||(m==-6)&&(d<1)){

            y--;

        }

        return Math.Max(y,0);

    }

}