C3123223313331322121111331333133313331333121211111333133313112232221   >>    C312322331333132212111133133313331333133312121111133313331311223222   <<    C3123223313331322121111331333133313331333121211111333133313112232223   >>      C3123223313331322121111331333133313331333121211111333133313112232222   >>