C1231321123223331211111131211113313331333132313331333112233232112221311221   >>    C123132112322333121111113121111331333133313231333133311223323211222131122   <<    C1231321123223331211111131211113313331333132313331333112233232112221311223   >>      C1231321123223331211111131211113313331333132313331333112233232112221311222   >>