C1231321123223331211111131211113313331333132313331333112233232121321322323131   >>    C123132112322333121111113121111331333133313231333133311223323212132132232313   <<    C1231321123223331211111131211113313331333132313331333112233232121321322323133   >>      C1231321123223331211111131211113313331333132313331333112233232121321322323132   >>