using System;

public class Program

{

    public static void Main()

    {

        uint data = 0x3E;

        uint firstMask = 1;

        uint lastMask = 0x80000000;

        int? first = null;

        int? last = null;

​

        for (int i=0; i < 32; i++) {

            if ((firstMask & data) > 0 && first == null)

            {

                first = i;

            }

            if ((lastMask & data) != 0 && last == null)

            {

                last = i;

            }

            firstMask = firstMask << 1;

            lastMask = lastMask >> 1;

        }

        last = 31-last;

​

        Console.WriteLine(first);

        Console.WriteLine(last);

    }

}