C312322331333132212111133133313331323133313221211111211113313123132121   >>    C31232233133313221211113313331333132313331322121111121111331312313212   <<    C312322331333132212111133133313331323133313221211111211113313123132123   >>      C312322331333132212111133133313331323133313221211111211113313123132122   >>