C312322331333132212111133133313331333133312121111331323211231121   >>    C31232233133313221211113313331333133313331212111133132321123112   <<    C312322331333132212111133133313331333133312121111331323211231123   >>      C312322331333132212111133133313331333133312121111331323211231122   >>