(rot13)
(hint1)
Lbh unir gb yrg gur lryybj oybpx tebj gb n yratgu bs 3 orsber lbh pna tb gb gur gbc-evtug nern naq rkvg.
(hint2)
Bapr gur lryybj oybpx ernpurf yratgu 3, vs vg fgnlf va gur obggbz-evtug nern, vg jvyy qrsvavgryl oybpx lbh.
(solution)
Yrg gur lryybj oybpx tebj gb yratgu 3 naq chfu vg gb gur zvqqyr bs gur gbc-evtug nern, gura zbir gur ubevmbagny ybpx ubyr gb gur evtugzbfg pbyhza.