public class Main {
	public static void main(String[] args) {
		int g = 0;
		int s = 0;
		int b = 0;
		int q = 0;
		int a = 0;
		for(int i = 1000; i < 10000 ; i++) {
			g = i % 10;
			s = i / 10 % 10;
			b = i / 100 % 10;
			q = i / 1000;
			a = g * 1000 + s *100 + b * 10 + q;
			if(9 * i == a) {
				
				System.out.println(i);
				
			}
		}
	}
}
/**************************************************************
	Problem: 1264
	User: admin
	Language: Java
	Result: Runtime Error
****************************************************************/