Cache is not located at the given coordinates. Cache is micro sized, containing a logbook and hopefully a pencil :)
You just have to solve this small problem, but remember to think differently.
Pb+Os+Mo+Ge-0.03= A
Ca+Li+Ti+S+0.049= B
Zn+Sr= C
Cache location:
N 56º (C-B+32).(A-B-C-34)
E 024º 01.(A+B+C-245)
