using static System.Console;

​

public class Program {

    public static void Main() {

        WriteLine(decimal.Multiply(50.40M, 3));

        WriteLine(50.40M * 3);

//      WriteLine(decimal.Multiply(50.40, 3));

        WriteLine(50.40 * 3);

        WriteLine(decimal.Multiply(50, 3).GetType());

        WriteLine((50 * 3).GetType());

//      decimal x = 1_000_000 * 1_000_000;

        decimal x = decimal.Multiply(1_000_000, 1_000_000);

    }

}