C1231321123223331211111131211113313331333133313223223312213132132321   >>    C123132112322333121111113121111331333133313331322322331221313213232   <<    C1231321123223331211111131211113313331333133313223223312213132132323   >>      C1231321123223331211111131211113313331333133313223223312213132132322   >>