using colAlias = System.Collections;

namespace System

{

    class TestClass

    {

        static void main()

        {

            colAlias::Hashtable test =new colAlias::Hashtable();

            test.Add("A", "1");

            test.Add("B", "2");

            test.Add("C", "3");

            foreach (string name in test.keys)

            {

                global::System.Console.WriteLine(name+""+test[name]);

            }

        }

    }

}