To gain the coordinates, enter the answer of the maths puzzle below (word) into the checker.
You are looking for a micro sized mint tin with a logbook and a pencil.
Enjoy!
You can validate your puzzle solution with certitude.
Rnpu rzbwv unf n ahzrevp inyhr. R.t gur pelvat rzbwv unf n inyhr bs -11. Gur pelvat rzbwv jbhyq or R. Gur nafjre vf n jbeq.