C1231321123223331211111131211113313331333132313331123311132113122332321   >>    C123132112322333121111113121111331333133313231333112331113211312233232   <<    C1231321123223331211111131211113313331333132313331123311132113122332323   >>      C1231321123223331211111131211113313331333132313331123311132113122332322   >>