using System;

public class Program

{

    public static void Main()

    {

            Console.WriteLine("0     --> " + A(0    ));

            Console.WriteLine("1     --> " + A(1    ));

            Console.WriteLine("2     --> " + A(2    ));

            Console.WriteLine("12    --> " + A(12   ));

            Console.WriteLine("18    --> " + A(18   ));

            Console.WriteLine("43    --> " + A(43   ));

            Console.WriteLine("122   --> " + A(122  ));

            Console.WriteLine("0.0   --> " + A(0.0  ));

            Console.WriteLine("1.04  --> " + A(1.04 ));

            Console.WriteLine("1.225 --> " + A(1.225));

            Console.WriteLine("1.399 --> " + A(1.399));

            Console.WriteLine("1.4   --> " + A(1.4  ));

            Console.WriteLine("1.74  --> " + A(1.74 ));

            Console.WriteLine("2.0   --> " + A(2.0  ));

            Console.WriteLine("2.72  --> " + A(2.72 )); 

    }

    static object A(object i){return i is int?(int)i>18?i:18:(double)i>1.4?i:1.4;}

}

​