C1231321123223331211111131211113313331333133313223223312232132333313131   >>    C123132112322333121111113121111331333133313331322322331223213233331313   <<    C1231321123223331211111131211113313331333133313223223312232132333313133   >>      C1231321123223331211111131211113313331333133313223223312232132333313132   >>