C312322331333132212111133133313331333133312121111331323222122331221   >>    C31232233133313221211113313331333133313331212111133132322212233122   <<    C312322331333132212111133133313331333133312121111331323222122331223   >>      C312322331333132212111133133313331333133312121111331323222122331222   >>