C13223313311212111133133313331333133313232233133313223213231311211   >>    C1322331331121211113313331333133313331323223313331322321323131121   <<    C13223313311212111133133313331333133313232233133313223213231311213   >>      C13223313311212111133133313331333133313232233133313223213231311212   >>