C1111121111331311211331333133313331333133313231333133313331331121111123222331   >>    C111112111133131121133133313331333133313331323133313331333133112111112322233   <<    C1111121111331311211331333133313331333133313231333133313331331121111123222333   >>      C1111121111331311211331333133313331333133313231333133313331331121111123222332   >>