public class Main {
	public static void main(String[] args) {
		int n = 0;
		int g = 0;
		int s = 0;
		int b= 0;
		int q= 0;
		for(int i = 1; i <= 100; i++) {
			n = i * i;
			g = n % 10;
			s = n / 10 % 10;
			b = n / 100 % 10;
			q = n / 1000;
			if( q == b & s == g) {
				System.out.println( n);
			}
			
		}
	}
}
/**************************************************************
	Problem: 1253
	User: admin
	Language: Java
	Result: Runtime Error
****************************************************************/