using static System.Console;
 
public static class Program {
	public static void Main(string[] args) => new Derivada(1, "");
}
 
public class Inicial {
	public Inicial() => WriteLine("Inicial"); //chamará base(), especificamente Object()
}
 
public class Base : Inicial {
	public Base(int x) : base() => WriteLine("Base");
}
 
public class Derivada : Base {
	public Derivada(int x, string y) : base(x) => WriteLine("Derivada");
}
 
//https://pt.stackoverflow.com/q/579238/101

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