C312322331333132212111133133313331333133312121111331121133133313231211222231   >>    C31232233133313221211113313331333133313331212111133112113313331323121122223   <<    C312322331333132212111133133313331333133312121111331121133133313231211222233   >>      C312322331333132212111133133313331333133312121111331121133133313231211222232   >>