C13223313311212111133133313331323133313331323121111331323211123121   >>    C1322331331121211113313331333132313331333132312111133132321112312   <<    C13223313311212111133133313331323133313331323121111331323211123123   >>      C13223313311212111133133313331323133313331323121111331323211123122   >>