C1111121111331311211331333133313331333133313221211113313331312321211   >>    C111112111133131121133133313331333133313331322121111331333131232121   <<    C1111121111331311211331333133313331333133313221211113313331312321213   >>      C1111121111331311211331333133313331333133313221211113313331312321212   >>