tnzyl → lyznt syt → tys jwlaqy → yqalwj
tnzyl → gma b o (g,m,a,b,o) syt → h b g jwlaqy → q d o z j b tnzyl-syt-jwlaqy
t(20th letter? Better use a=1,b=2: t=20, +13=33, 33-26=7→g; n=14,+13=27-26=1→a; z=26,+13=39-26=13→m; y=25,+13=38-26=12→l; l=12,+13=25→y → "gamly") tnzyl → lyznt syt → tys jwlaqy →
Full ROT13: (still not English). 4. Try reverse string + ROT13 or Atbash Reverse: yqalwj-tys-lznyt tnzyl-syt-jwlaqy
t (19) +13 = 32 → 32-26=6 → g n (13) +13 = 26 → 26-26=0 → a (but careful: a=1? Let's use a=0,b=1: t=19, +13=32%26=6→g; n=13,+13=26%26=0→a; z=25,+13=38%26=12→m; y=24,+13=37%26=11→l; l=11,+13=24→y) – let’s do systematically:
Atbash result: gmabo hbg qdozjb → not readable. ROT13: a↔n, b↔o, etc.