using System;

namespace _4._1
{
	/// <summary>
	/// Class1 的摘要說明。
	/// </summary>
	class Addition
	{
		/// <summary>
		/// 應用程序的主入口點。
		/// </summary>
		[STAThread]
		static void Main(string[] args)
		{
			//
			// TODO: 在此處添加代碼以啟動應用程序
			Console.Write(8+8+",");
			Console.Write("8+0.8"+",");
			Console.Write("a"+"a"+",");
			Console.Write(8.3+"a"+",");
			Console.Write(8+'a'+",");
			Console.WriteLine(8.3+'a');
		}
	}
}