C312322331333132212111133133313331323133313221211111211113322132233133313123121   >>    C31232233133313221211113313331333132313331322121111121111332213223313331312312   <<    C312322331333132212111133133313331323133313221211111211113322132233133313123123   >>      C312322331333132212111133133313331323133313221211111211113322132233133313123122   >>