Neoruons

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

    class Neurons
    {
        static void Main()
        {

            List<long> crossSections = new List<long>();
            long n = long.Parse(Console.ReadLine());

            while (n!=-1)
            {
                crossSections.Add(n);
                n = long.Parse(Console.ReadLine());
            }


                for (int i = 0; i < crossSections.Count; i++)
                {
                    if (crossSections[i]!=0)
                    {
                        List<int> bitPosition = new List<int>();

                        for (int j = 0; j < 32; j++)
                        {
                            if ((crossSections[i] & 1 << j) != 0)
                            {
                                crossSections[i] = crossSections[i] & (~(1 << j));
                                bitPosition.Add(j);
                            }
                            else
                            {
                                crossSections[i] = crossSections[i] | (1 << j);
                            }

                        }

                        for (int z = 0; z < bitPosition.Min(); z++)
                        {
                            crossSections[i] = crossSections[i] & (~(1 << z));
                        }
                        for (int k = bitPosition.Max() + 1; k < 32; k++)
                        {
                            crossSections[i] = crossSections[i] & (~(1 << k));
                        }

                    }

                }

                for (int s = 0; s < crossSections.Count; s++)
                {
                    Console.WriteLine(crossSections[s]);

                }

        }
    }