What is the difference between the floor number of A and Z?

Study the following information carefully and answer the question given below: There are eight people A, J, C, M, P, O, Y and Z are living in a 8 floor Building on different floors from top to bottom (such as ground floor is numbered as 1 and top floor is numbered as 8) but not necessarily in the same order. O lives on an odd number floor but does not live on 3rd floor. Z lives immediate below O. More than two persons live between Y and Z. There are six persons live between A and Y. M lives immediate above P but live below J. C does not live above O. P does not live immediate above Y.