AAI ATC Junior Executive 27 Dec 2023 Shift 1 Paper

7 persons M, N, O, P, Q, R and S are sitting in a row facing towards south (not necessarily in the same order). R is not at the extreme end of the row. P sits at 5th position to the right of M. Two person is sitting between M and R. P and R is not an immediate neighbour of each other. S is sitting at second position from the left of R. N sits at 4th position to the right of O. Who is at the 3rd position from left end and right end respectively?