C312322331333132212111133133313331333133312121111331322211232312231   >>    C31232233133313221211113313331333133313331212111133132221123231223   <<    C312322331333132212111133133313331333133312121111331322211232312233   >>      C312322331333132212111133133313331333133312121111331322211232312232   >>