C312322331333132212111133133313331333133312121111331121133133313231122221221   >>    C31232233133313221211113313331333133313331212111133112113313331323112222122   <<    C312322331333132212111133133313331333133312121111331121133133313231122221223   >>      C312322331333132212111133133313331333133312121111331121133133313231122221222   >>