C1111121111331311211331333133313331333133313231333133313311222221   >>    C111112111133131121133133313331333133313331323133313331331122222   <<    C1111121111331311211331333133313331333133313231333133313311222223   >>      C1111121111331311211331333133313331333133313231333133313311222222   >>