C3123223313331322121111331333133313331333121211113311211331333132323112321221   >>    C312322331333132212111133133313331333133312121111331121133133313232311232122   <<    C3123223313331322121111331333133313331333121211113311211331333132323112321223   >>      C3123223313331322121111331333133313331333121211113311211331333132323112321222   >>