C1111121111331311211331333133313331333133313231333133313311221121   >>    C111112111133131121133133313331333133313331323133313331331122112   <<    C1111121111331311211331333133313331333133313231333133313311221123   >>      C1111121111331311211331333133313331333133313231333133313311221122   >>