C22212323232133313113313331333132313331323133313332331132223331322211231   >>    C2221232323213331311331333133313231333132313331333233113222333132221123   <<    C22212323232133313113313331333132313331323133313332331132223331322211233   >>      C22212323232133313113313331333132313331323133313332331132223331322211232   >>