C1111121111331311211331333133313331333133313221211113313231333132333121   >>    C111112111133131121133133313331333133313331322121111331323133313233312   <<    C1111121111331311211331333133313331333133313221211113313231333132333123   >>      C1111121111331311211331333133313331333133313221211113313231333132333122   >>