Direction: Read the following information carefully and answer the question that follow:

The coding language used to indicate the positions of points is as follows:

P 17@ Q means P is 14 m north to the point Q

P 15$ Q means P is 20 m east to the point Q

P 16% Q means P is 13 m south to the point Q

P 12& Q means P is 17 m west to the point Q

The positions of some points are:

A 15& B, B 27% C, C 17& D, L 18% A, M 33$ L, N 28@ M, O 15$ N, K 17@ O.