C1111121111331311211331333133313331333131211113313311212113313221211   >>    C111112111133131121133133313331333133313121111331331121211331322121   <<    C1111121111331311211331333133313331333131211113313311212113313221213   >>      C1111121111331311211331333133313331333131211113313311212113313221212   >>