C1231321123223331211111131211113313331333133313223223312231321333112321   >>    C123132112322333121111113121111331333133313331322322331223132133311232   <<    C1231321123223331211111131211113313331333133313223223312231321333112323   >>      C1231321123223331211111131211113313331333133313223223312231321333112322   >>