C312322331333132212111133133313331333133312121111331333131111312311   >>    C31232233133313221211113313331333133313331212111133133313111131231   <<    C312322331333132212111133133313331333133312121111331333131111312313   >>      C312322331333132212111133133313331333133312121111331333131111312312   >>