C13223313311212111133133313331323133313331323121211113313132233132313231231   >>    C1322331331121211113313331333132313331333132312121111331313223313231323123   <<    C13223313311212111133133313331323133313331323121211113313132233132313231233   >>      C13223313311212111133133313331323133313331323121211113313132233132313231232   >>