C3123223313331322121111331333133313121111331323133313333213331333132313211   >>    C312322331333132212111133133313331312111133132313331333321333133313231321   <<    C3123223313331322121111331333133313121111331323133313333213331333132313213   >>      C3123223313331322121111331333133313121111331323133313333213331333132313212   >>