public class Main {

	public static void main(String[] args) {
		for(int i=100;i<=999;i++) {
			int g = i % 10;
			int b = i / 100;
			if(g==b) {
				System.out.println(i);
			}
		}

	}

}
/**************************************************************
	Problem: 1701
	User: admin
	Language: Java
	Result: Accepted
	Time:235 ms
	Memory:34656 kb
****************************************************************/