回文数

import java.util.Scanner;


public class Main {
	static char []str2 = new char [10];
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		for (int i = 1000 ; i < 10000 ; i++) {
			String str1 = String.valueOf(i);
			str2 = str1.toCharArray();
			if(i < 10000 && str2[0] == str2[3] && str2[1] == str2[2])
			{
					System.out.println(i);
			}
		}
	}

}