C13223313311212111133133313331323133313331323121111331311221123232311   >>    C1322331331121211113313331333132313331333132312111133131122112323231   <<    C13223313311212111133133313331323133313331323121111331311221123232313   >>      C13223313311212111133133313331323133313331323121111331311221123232312   >>