using System;

class BitSwitchCustomize
{
    static void Main()
    {
        Console.Write("Please enter any number of type \"uint\" to exchange bits {p,p+1,...,p+k-1}\n(counting of bits starting from 0) with bits {q,q+1,...,q+k-1}\nrespectively: ");
        uint input = uint.Parse(Console.ReadLine());
        Console.Write("p= ");
        byte pos1 = byte.Parse(Console.ReadLine());
        Console.Write("q= ");
        byte pos2 = byte.Parse(Console.ReadLine());
        Console.Write("k= ");
        byte len = byte.Parse(Console.ReadLine());
        uint numberToAdd1 = ((input << (32 - pos2 -len)) >> (32 - len)) << pos1;
        uint numbertoAdd2 = ((input >> pos1) << (32 - len)) >> (32 - pos2 - len);
        uint numberToAdd = numberToAdd1 + numbertoAdd2;
        uint numberToSubtract1 = numberToAdd1 << (pos2 - pos1);
        uint numberToSubtract2 = numbertoAdd2 >> (pos2 - pos1);
        uint numberToSubtract = numberToSubtract1 + numberToSubtract2;
        uint output = (input - numberToSubtract) + numberToAdd;
        Console.WriteLine();
        Console.WriteLine("Result: " + output);
        Console.WriteLine();
    }
}