public class Main {
	public static void main(String[] args) {
		
		for(int i = 999; i >= 100 ; i--) {
			
			if(555555 % i == 0 ) {
				
				System.out.println(i);
				break;
				
			}
		}
	}
}
/**************************************************************
	Problem: 1266
	User: admin
	Language: Java
	Result: Runtime Error
****************************************************************/