C1231321123223331211111131211113313331333133313223223312232223313311   >>    C123132112322333121111113121111331333133313331322322331223222331331   <<    C1231321123223331211111131211113313331333133313223223312232223313313   >>      C1231321123223331211111131211113313331333133313223223312232223313312   >>