/* file 1 */
class LueLinks {
	int value;
	public LueLinks(int value) {
		this.value=value;
	}
	@Override public boolean equals(LueLinks other) {
		if(other.value == value) {
			return true;
		}
		return false;
	}
	@Override public int hashCode() {
		return value;
	}

}
/* file 2 */
class Starter {

	public static void main(String args[]) {
		Set<LueLinks> set = new HashSet<LueLinks>();
		set.add(new LueLinks(1));
		set.add(new LueLinks(2));
		set.add(new LueLinks(2));
		System.out.println(set.size());
	}
}