import java.util.ArrayList;
import java.util.Iterator;

public class FunnyIntegerSet {
	private ArrayList<Integer> a = new ArrayList<Integer>();
	
	public void insert(int x) {
		a.add(new Integer(x));
	}
	
	/*  This code is WRONG */
	public int findClosest(int x) {
		Iterator it = a.iterator();
		int closest = (Integer)it.next();
		while(it.hasNext()) {
			int value = (Integer)it.next();
			if (Math.abs(value - x) < closest - x)
				closest = value;
		}
		return closest;
	}
}