C1231321123223331211111131211113313331333132313331123311132221212111   >>    C123132112322333121111113121111331333133313231333112331113222121211   <<    C1231321123223331211111131211113313331333132313331123311132221212113   >>      C1231321123223331211111131211113313331333132313331123311132221212112   >>