public class Main {
	public static void main(String[] args) {
		for(int i = 1;;i++) {
			double a = Math.sqrt(i+100);
			double b = Math.sqrt(i+268);
			if((a % 2 == 1 | a % 2 == 0) && (b % 2 == 1 | b % 2 == 0)) {
				System.out.println(i);
				break;
			}
		}
	}
}
/**************************************************************
	Problem: 1267
	User: admin
	Language: Java
	Result: Runtime Error
****************************************************************/