计算：0F3[.\-b-y;F5l)d
899998－799999＋89998－79999＋8998－7999＋898－799＋88－790F3[.\-b-y;F5l)d
算式：提示,^;f0R(v6i7f*_7E'_3m']0F3[.\-b-y;F5l)d
＝3X'L1b9I5u0F3[.\-b-y;F5l)d