C312322331333132212111133133313331333133312121111331321123231311321221   >>    C31232233133313221211113313331333133313331212111133132112323131132122   <<    C312322331333132212111133133313331333133312121111331321123231311321223   >>      C312322331333132212111133133313331333133312121111331321123231311321222   >>