Note that the listed coordinates are bogus so don’t go there. Solve the puzzle and you will find the cache at:
S 37 44.E(F-D-A)(B+C-G)
E 175 14.F(A+B-C)(C+A-F)
The cache is a 400 ml camo painted Sistema container. Some stealth may be required to retrieve it.
You can check your answers for this puzzle on Geochecker.com.