C13223313311212111133133313331323133313331323121211113313221121   >>    C1322331331121211113313331333132313331333132312121111331322112   <<    C13223313311212111133133313331323133313331323121211113313221123   >>      C13223313311212111133133313331323133313331323121211113313221122   >>