Basically, take the previous person’s number and preform up to three simple operations on it. (x+y, x-y, x*y, x/y, x^y, logx(y), xroot(y)). Oh, and did I mention that you’re doing all this with complex numbers? The initial number is 0+0i, or, in other words, flat out zero.
Oh! Also, use x whenever you are referring the the previous post’s result, and make sure to mark down the result of your equation)