C1231321123223331211111131211113313331333132313331333112233232112222133132311   >>    C123132112322333121111113121111331333133313231333133311223323211222213313231   <<    C1231321123223331211111131211113313331333132313331333112233232112222133132313   >>      C1231321123223331211111131211113313331333132313331333112233232112222133132312   >>