C1231321123223331211111131211113313331333132313331333112233232112111322232331   >>    C123132112322333121111113121111331333133313231333133311223323211211132223233   <<    C1231321123223331211111131211113313331333132313331333112233232112111322232333   >>      C1231321123223331211111131211113313331333132313331333112233232112111322232332   >>