C312322331333132212111133133313331333133312121111331333232213112121   >>    C31232233133313221211113313331333133313331212111133133323221311212   <<    C312322331333132212111133133313331333133312121111331333232213112123   >>      C312322331333132212111133133313331333133312121111331333232213112122   >>