C312322331333132212111133133313331333133312121111331121133131112121   >>    C31232233133313221211113313331333133313331212111133112113313111212   <<    C312322331333132212111133133313331333133312121111331121133131112123   >>      C312322331333132212111133133313331333133312121111331121133131112122   >>