public class A {
    class Point implements Comparable<Point>{
        int x, y;
        Point(int x, int y){
            this.x = x;
            this.y = y;
        }

        @Override
        public int compareTo(Point o) {
            if(this.x == o.x) return this.y - o.y;
            return this.x - o.y;
        }
    }

    void solve(){
        Point[] a = new Point[2];
        a[0] = new Point(1, 2);
        a[1] = new Point(2, 1);
    }

    public static void main(String[] args)
    {
        new A().solve();
    }
}