using System;

public class Program

{

    public static void Main()

    {

        int A=50,B=60,C=90;

        if(A>B)

        {       

        Console.WriteLine("A>B");

    }

    else if(C>A)

    {

        Console.WriteLine("C>A");

    }

        else

    {

        Console.WriteLine("什麼都不是");

    }   

    }

}