C1111121111331311211331333133313331333133313231333133313331323222331211221   >>    C111112111133131121133133313331333133313331323133313331333132322233121122   <<    C1111121111331311211331333133313331333133313231333133313331323222331211223   >>      C1111121111331311211331333133313331333133313231333133313331323222331211222   >>