The posted coordinates will take you into a neighborhood where you will easily spot a garage door that is painted colorfully with a matrix of numbers. Please be respectful of the neighborhood. You do not need to leave the sidewalk to obtain the necessary information. Do not intrude on private property.
You will need to use the numbers painted on the garage door to derive the coordinates to the final.
Label the columns A through F. Label the rows 1 through 4. (As verification, the value of F1 = 2).
B1 - A4 = J C3 * 2 = UV
E4 * 3 = KL C1 + F4 = XY
A1 = M B1 - A4 = Z
Final can be found at :
N 42 J.KLM W 87 UV.XYZ