If I tell you I have $3 in my left pocket, and $5 in my right pocket, then someone else says they have have $5 in the right pocket, and $3 in their left pocket, is the $$ configuration in our pockets identical, or different?
Order in which they are listed doesn't matter, what matters is how the orbitals are filled. 4s2 3d10 suggests 4s was filled first, then 3d - but regardless of which was filled first, the final configurations are identical. It is just a matter of convention how they are listed, and there is no convention that everyone agrees on.