using System;
using System.Collections.Generic;
public class Program
{
public static void Main()
List<int> list = new List<int>();
int input = 26;
while (input >= 1)
int r = input % 2;
list.Add(r);
double result = input / 2;
input = (int)Math.Floor(result);
}
list.Reverse();
foreach (int j in list)
Console.Write(j);