C1231321123223331211111131211113313331333132313331333112233232122312133121221   >>    C123132112322333121111113121111331333133313231333133311223323212231213312122   <<    C1231321123223331211111131211113313331333132313331333112233232122312133121223   >>      C1231321123223331211111131211113313331333132313331333112233232122312133121222   >>