C13223313311212111133133313331323133313331323121111331311211121   >>    C1322331331121211113313331333132313331333132312111133131121112   <<    C13223313311212111133133313331323133313331323121111331311211123   >>      C13223313311212111133133313331323133313331323121111331311211122   >>