java 乱码

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class Main
{
	/**
	 * @param args
	 */
	public static void main(String[] args)
	{
		// TODO Auto-generated method stub
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		String s = null;
		try
		{
			while((s=br.readLine()) != null)
			{			
			String a[]=s.split(" ");
			int x=Integer.parseInt(a[0]);
			int y=Integer.parseInt(a[1]);
			System.out.println(x+y);
			}
		} catch (NumberFormatException e)
		{
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e)
		{
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}