Once at the posted coordinates you will observe a sign with one black letter on it.
A = the number of the letter using the A1Z26 cipher
To determine the final coordinates do a projection from posted using the following:
meters = (10 x A) + 58
angle = (10 x A) + 35
To ensure you have the correct answers for the above the sum of angle and meters is 413.
The last digit of the north coordinates is 0 and the last digit in the west coordinates is 3.