C13223313311212111133133313331333133313232233133313132311111221   >>    C1322331331121211113313331333133313331323223313331313231111122   <<    C13223313311212111133133313331333133313232233133313132311111223   >>      C13223313311212111133133313331333133313232233133313132311111222   >>