C1111121111331311211331333133313331333133313231333133313331333131112212131   >>    C111112111133131121133133313331333133313331323133313331333133313111221213   <<    C1111121111331311211331333133313331333133313231333133313331333131112212133   >>      C1111121111331311211331333133313331333133313231333133313331333131112212132   >>