C13223313311212111133133313331333133313231323133211331323132232331   >>    C1322331331121211113313331333133313331323132313321133132313223233   <<    C13223313311212111133133313331333133313231323133211331323132232333   >>      C13223313311212111133133313331333133313231323133211331323132232332   >>