using System;

public class Program

{

    public static void Main()

    {

        var totalPages = 10;

        for(int i=1; i<=totalPages; i++){

            var current = i;

            var pagingStart = Math.Min(Math.Max(1, current - 2), Math.Max(1, Math.Min(current + 2, totalPages) - 4));

            var pagingEnd = Math.Max(Math.Min(current + 2, totalPages), Math.Min(totalPages, Math.Max(1, current - 2) + 4));

            var pagingStart2 = current - 2;

            pagingStart2 = pagingStart2 > totalPages - 5 ? totalPages - 4 : pagingStart2;

            pagingStart2 = pagingStart2 < 1 ? 1 : pagingStart2;

            var pagingEnd2 = current + 2;

            pagingEnd2 = pagingEnd2 > totalPages ? totalPages : pagingEnd2;

            pagingEnd2 = pagingEnd2 < totalPages - 5 ? totalPages - 5 : pagingEnd2;

            Console.WriteLine("current="+current+ " start=" + pagingStart + " end=" + pagingEnd+ " start2=" + pagingStart2 + " end2=" + pagingEnd2);

        }

    }

}