namespace anonymous
{

    using ComplexNumberTuple = Tuple<int, int>;

    public class ComplexNumber
    {
        public int real;
        public int imaginary;

        public ComplexNumber(int real, int imaginary)
        {
            this.real = real;
            this.imaginary = imaginary;
        }

        public static ComplexNumber operator +(ComplexNumber a, ComplexNumber b)
        {
            return new ComplexNumber(a.real + b.real, a.imaginary + b.imaginary);
        }

        public override string ToString()
        {
            return this.real.ToString() + "+ i" + this.imaginary.ToString();
        }
    }
    public class MethodOverloading
    {
        public static int myAdditionMethod(int a, int b)
        {
            return a + b;
        }

        public static double myAdditionMethod(double a, double b)
        {
            return a + b;
        }

        public static String myAdditionMethod(String a, String b)
        {
            return a + " " + b;
        }

        public static ComplexNumberTuple myAdditionMethod(ComplexNumberTuple a, ComplexNumberTuple b)
        {
            int real = a.Item1 + b.Item1;
            int imaginary = a.Item2 + b.Item2;
            return new ComplexNumberTuple(real, imaginary);
        }

        public static ComplexNumber myAdditionMethod(ComplexNumber a, ComplexNumber b)
        {
            return a + b;
        }

        static void Main(string[] args)
        {
            bool success = false;

            while (!success)
            {
                try
                {
                    Console.WriteLine("Enter an integer and press Enter key: ");
                    int a = Int32.Parse(Console.ReadLine());
                    Console.WriteLine("Enter an integer and press Enter key: ");
                    int b = Int32.Parse(Console.ReadLine());
                    Console.WriteLine($"The sum of the two integers is {myAdditionMethod(a, b)}");

                    Console.WriteLine("Enter a float number and press Enter key: ");
                    double da = Double.Parse(Console.ReadLine());
                    Console.WriteLine("Enter a float number and press Enter key: ");
                    double db = Double.Parse(Console.ReadLine());
                    Console.WriteLine($"The sum of the two floats is {myAdditionMethod(da, db)}");

                    Console.WriteLine("Enter your last name and press Enter key: ");
                    string sa = Console.ReadLine();
                    Console.WriteLine("Enter your first name and press Enter key: ");
                    string sb = Console.ReadLine();
                    Console.WriteLine($"Your name is {myAdditionMethod(sa, sb)}");


                    Console.WriteLine("Enter the real part of the first complex number and press Enter key: ");
                    int car = Int32.Parse(Console.ReadLine());
                    Console.WriteLine("Enter the imaginary part of the first complex number and press Enter key: ");
                    int cai = Int32.Parse(Console.ReadLine());
                    var ca = new ComplexNumber(car, cai);
                    var cta = new ComplexNumberTuple(car, cai);

                    Console.WriteLine("Enter the real part of the second complex number and press Enter key: ");
                    int cbr = Int32.Parse(Console.ReadLine());
                    Console.WriteLine("Enter the imaginary part of the second complex number and press Enter key: ");
                    int cbi = Int32.Parse(Console.ReadLine());
                    var cb = new ComplexNumber(cbr, cbi);
                    var ctb = new ComplexNumberTuple(cbr, cbi);

                    Console.WriteLine($"The sum of the two complex numbers (new class) is {myAdditionMethod(ca, cb)}");
                    Console.WriteLine($"The sum of the two complex numbers (tuple) is {myAdditionMethod(ctb.Item1, ctb.Item2)}");

                    success = true;
                }
                catch
                {
                    Console.WriteLine("Parse error, try again...");
                }
            }
        }
    }


}