C1231321123223331211111131211113313331333132313331333112233232112112321232211   >>    C123132112322333121111113121111331333133313231333133311223323211211232123221   <<    C1231321123223331211111131211113313331333132313331333112233232112112321232213   >>      C1231321123223331211111131211113313331333132313331333112233232112112321232212   >>