C#Basics HW3 - Problem 16 Advanced Bit Exchange

using System;
class AdvancedBitExchange
{
    static void Main()
    {
        Console.Write("Please input a number : ");
        string userInput = Console.ReadLine();                                                          // is input number uint?
        uint input;
        if (!uint.TryParse(userInput, out input))
        {
            Console.WriteLine("Invalid input!");
            return;
        }                                                                                               // is input number uint?
        Console.Write("enter beginning of first bit range (p): ");
        int firstBitGroupStartPosition = int.Parse(Console.ReadLine());
        Console.Write("enter beginning of second bit range (q): ");
        int secondBitGroupStartPosition = int.Parse(Console.ReadLine());
        Console.Write("enter bit length for consecutive bits (k): ");
        int bitGroupLength = int.Parse(Console.ReadLine());

    int bitGroupsDistance = Math.Abs(firstBitGroupStartPosition - secondBitGroupStartPosition);
        if (bitGroupsDistance < bitGroupLength)
        {
            Console.WriteLine("overlapping");
            return;
        }
        int outOfRange = Math.Max(firstBitGroupStartPosition, secondBitGroupStartPosition);
        if (outOfRange + bitGroupLength > 32) //Max(p,q) + k should be 32 at most.
        {
            Console.WriteLine("out of range");
            return;
        }
        // || START OF THE ACTUAL PROGRAM ||
    // Calculate a number with k times '1's to use later as a mask :
    uint maskTemplate = (UInt32)Convert.ToInt32(Math.Pow(2.0, (double)bitGroupLength) - 1);
        uint maskFirstBits = maskTemplate << firstBitGroupStartPosition;
        uint maskSecondBits = maskTemplate << secondBitGroupStartPosition;
        uint firstBitGroup = input & maskFirstBits;
        uint secondBitGroup = input & maskSecondBits;
        uint makeZeroFirstBitGroupOfInput = input & ~maskFirstBits;
        uint makeZeroSecondBitGroupOfInput = input & ~maskSecondBits;
        uint inputWithBitsOfInterestToZero = makeZeroFirstBitGroupOfInput & makeZeroSecondBitGroupOfInput;
        if (firstBitGroupStartPosition >= secondBitGroupStartPosition)
        {
            uint output = (inputWithBitsOfInterestToZero | firstBitGroup >> (bitGroupsDistance)) | (secondBitGroup << bitGroupsDistance);
            Console.WriteLine("The result is: " + output);
        }
        else
        {
            uint output = (inputWithBitsOfInterestToZero | firstBitGroup << (bitGroupsDistance)) | (secondBitGroup >> bitGroupsDistance);
            Console.WriteLine("The result is: " + output);
        }
    }
}