static void Main(string[] args)
{
SimpleCalculator sc = new SimpleCalculator();
Console.WriteLine(sc.userSquared());
Console.WriteLine(sc.addTwoNumbers());
Console.WriteLine("Enter 3 Numbers, and I'll tell you which is biggest: ");
int x, y, z;
x = int.Parse(Console.ReadLine());
y = int.Parse(Console.ReadLine());
z = int.Parse(Console.ReadLine());
Console.WriteLine(sc.findMaxOfThree(x, y, z));
Console.ReadLine();
}