Modify Number Bits

/*
 * We are given integer number n, value v (v=0 or 1) and a position p. Write a sequence of operators that modifies n to hold the value v at the position p from the binary representation of n.
    Example: n = 5 (00000101), p=3, v=1  13 (00001101)
    n = 5 (00000101), p=2, v=0  1 (00000001)
*/

using System;

class ModifyNumberBits
{
    static void Main()
    {
        int numberN, valueV, positionP, numberMask, modifiedNumber;
        string errorInvalidInt = "Invalid input! Please enter number between " + int.MinValue + " and " + int.MaxValue + "!\n";

        Console.WriteLine("Enter integer number: ");
        if (int.TryParse(Console.ReadLine(), out numberN) && numberN >= int.MinValue && numberN <= int.MaxValue)
        {
            Console.WriteLine("Binary code of your number {0}  is: {1}", numberN, Convert.ToString(numberN, 2).PadLeft(32, '0'));
            Console.WriteLine("Enter bit position you want to modify (count from 0): ");
            if (int.TryParse(Console.ReadLine(), out positionP) && positionP >= int.MinValue && positionP <= int.MaxValue)
            {
                Console.WriteLine("Enter value V (0 or 1): ");
                while (!(int.TryParse(Console.ReadLine(), out valueV) && (valueV == 0 || valueV == 1)))
                {
                    Console.WriteLine("Enter value V (0 or 1): ");
                }
                if (valueV == 0)
                {
                    numberMask = ~(1 << positionP);
                    modifiedNumber = numberN & numberMask;
                }
                else
                {
                    numberMask = 1 << positionP;
                    modifiedNumber = numberN | numberMask;
                }

                Console.WriteLine("{0}: \t{1}\n{2}: \t{3}\n", numberN, Convert.ToString(numberN, 2).PadLeft(32, '0'), modifiedNumber, Convert.ToString(modifiedNumber, 2).PadLeft(32, '0'));
                Main();
            }
            else
            {
                Console.WriteLine(errorInvalidInt);
                Main();
            }
        }
        else
        {
            Console.WriteLine(errorInvalidInt);
            Main();
        }

    }
}