C1111121111331311211331333133313331333133313231333133313331233131111   >>    C111112111133131121133133313331333133313331323133313331333123313111   <<    C1111121111331311211331333133313331333133313231333133313331233131113   >>      C1111121111331311211331333133313331333133313231333133313331233131112   >>