C13223313311212111133133313331333133313232233133313121111331333112323131121   >>    C1322331331121211113313331333133313331323223313331312111133133311232313112   <<    C13223313311212111133133313331333133313232233133313121111331333112323131123   >>      C13223313311212111133133313331333133313232233133313121111331333112323131122   >>