C312322331333132212111133133313331333133312121111331322221212121   >>    C31232233133313221211113313331333133313331212111133132222121212   <<    C312322331333132212111133133313331333133312121111331322221212123   >>      C312322331333132212111133133313331333133312121111331322221212122   >>