//¦¼öÀÇÇÕ2.cs : 1~100±îÁö ¦¼öÀÇ ÇÕ : while¹®
using System;
public class ¦¼öÀÇÇÕ2{
	public static void Main(){
		int intSum = 0;
		int i = 1;					//[1] Ãʱâ½Ä
		while(i <= 100)			//[2] Á¶°Ç½Ä
		{
			if(i % 2 == 0)
			{
				intSum += i;			//[!] ½ÇÇ๮
			}
			i++;							//[3] Áõ°¨½Ä(*)
		}
		Console.WriteLine("{0}", intSum);
	}
}