(9999+9997+…+9001)-(1+3+…+999))\/[8t(j0_5P7l5w8Q6T(k)B
算式:提示+K*Q'j)\/[8t(j0_5P7l5w8Q6T(k)B
=-w+S9{4A/W.g,g)H5M'h)\/[8t(j0_5P7l5w8Q6T(k)B