14.02.Next Date

using System;
using System.Collections.Generic;
class StudentCables
{
    static List<int> largestMonths = new List<int> { 1, 3, 5, 7, 8, 10 };
    static List<int> middleMonths = new List<int> { 4, 6, 9, 11};
    static void Main()
    {
        int day = int.Parse(Console.ReadLine());
        int month = int.Parse(Console.ReadLine());
        int year = int.Parse(Console.ReadLine());

        if ((year % 4 == 0 && month == 2 && day == 29)
            || (month == 2 && day == 28))
        {
            LieapYears(day, month, year);
        }
        else if (largestMonths.Contains(month))
        {
            BigMonths(day, month, year);
        }
        else if (middleMonths.Contains(month))
        {
            MiddleMonths(day, month, year);
        }
        else if(day == 31 && month == 12)
        {
            EndOfTheYear(day, month, year);
        }
        else
        {
            CommonDate(day, month, year);
        }
    }

    private static void CommonDate(int day, int month, int year)
    {
        Console.WriteLine("{0}.{1}.{2}", ++day, month, year);
    }

    private static void EndOfTheYear(int day, int month, int year)
    {
        Console.WriteLine("{0}.{1}.{2}", 1, 1, ++year);
    }

    private static void MiddleMonths(int day, int month, int year)
    {
        if (day == 30)
        {
            Console.WriteLine("{0}.{1}.{2}", 1, ++month, year);
        }
        else
        {
            CommonDate(day, month, year););//ползвам вече направените методи
        }
    }

    private static void BigMonths(int day, int month, int year)
    {
        if (day == 31)
        {
            Console.WriteLine("{0}.{1}.{2}", 1, ++month, year);
        }
        else
        {
            CommonDate(day, month, year););//ползвам вече направените методи
        }
    }

    static void LieapYears(int day, int month, int year)
    {
        if (day == 29 && month == 2)
        {
            Console.WriteLine("{0}.{1}.{2} ", 1, ++month, year);
        }
        else if (day == 28 && month == 2 && year % 4 != 0)
        {
            Console.WriteLine("{0}.{1}.{2} ", 1, ++month, year);
        }
        else if(largestMonths.Contains(month))
        {
            BigMonths(day,month,year););//ползвам вече направените методи
        }
        else if (middleMonths.Contains(month))
        {
            MiddleMonths(day, month, year););//ползвам вече направените методи
        }
        else if(month == 12)
        {
            EndOfTheYear(day, month, year););//ползвам вече направените методи
        }
        else
        {
            CommonDate(day, month, year););//ползвам вече направените методи
        }
    }
}