C13223313311212111133133313331333133313232233133313311232313231231   >>    C1322331331121211113313331333133313331323223313331331123231323123   <<    C13223313311212111133133313331333133313232233133313311232313231233   >>      C13223313311212111133133313331333133313232233133313311232313231232   >>