C312322331333132212111133133313331333133312121111331211113322311   >>    C31232233133313221211113313331333133313331212111133121111332231   <<    C312322331333132212111133133313331333133312121111331211113322313   >>      C312322331333132212111133133313331333133312121111331211113322312   >>