C312322331333132212111133133313331312111133132321123231322232311   >>    C31232233133313221211113313331333131211113313232112323132223231   <<    C312322331333132212111133133313331312111133132321123231322232313   >>      C312322331333132212111133133313331312111133132321123231322232312   >>