t(20)→o(15) h(8)→c(3) m(13)→h(8) y(25)→t(20) l(12)→g(7) → ocht g — no.
Let me decode it step by step. The phrase: thmyl ttbyq Cee synmana llayfwn thmyl ttbyq Cee synmana llayfwn
Let’s test full phrase backward shift 5 (i.e., each letter minus 5): one common trick: Try fully:
thmyl ttbyq ROT-13: thmyl → guzly ttbyq → ggod? Wait, let's do properly: thmyl ttbyq Cee synmana llayfwn
t(20) +11 = 31 → 5 (e) h(8) +11 = 19 (s) m(13) +11 = 24 (x) y(25) +11 = 36 → 10 (j) l(12) +11 = 23 (w) → esxjw — no. (ROT-5 backward = ROT-21)
However, one common trick: Try fully: