Classically easy to find, but may take you anywhere between 5 minutes and 2 hours to open. Good luck! be patient, and don't force it. It opens smooth. can't say you've logged it til you can see the log paper!
Ab sbepvat vg. Gurer'f n ybg bs qrnq raqf, ohg vg pbzrf bhg fzbbgu. Gvzr vf lbhe sevraq. Gurer'f ab tbbq uvagf sbe bcravat vg. Tbbq yhpx. Cf vg'f na ycp