But if it’s a Caesar shift of -1 for whole phrase: b→a, y→x, h→g, s→r, s→r → “axgrr” — not matching.
Actually “alatwbys” — if each letter minus 1: z k s v a x r — no. But if original intended Latin letters for Arabic sounds: “al autobees” → الأتوبيس. So “alatwbys” with t instead of u? w instead of b?
Given the structure and “fy alatwbys” → “في الأتوبيس” (in the bus) — that’s Arabic, but letters are shifted: “alatwbys” — shift back 1 letter → “zksvaxr” no. But “alatwbys” in Arabic script is الأتوبيس, but if each Latin letter is shifted by +1 from original Arabic Latin script?
Wait — what if “Download-” is just a header and the rest is a cipher: Ciphertext: byhss ly tyz mhjbt msryt fy alatwbys Download- byhss ly tyz mhjbt msryt fy alatwbys...
“byhss” → axgrr? No. Maybe ROT3? b→y, y→v, h→e, s→p, s→p → “yvepp” no.
But your example “alatwbys” = “bus” in Arabic pronounced “otobees” — so if we shift backward 1: “zksvaxr” no. Maybe it’s a Caesar shift of +1 on English letters that represent Arabic sounds:
If “alatwbys” original intended = “alautobees” → “alatwbys” shift +1: a→b, l→m, a→b, u→v, t→u, o→p, b→c, e→f, e→f, s→t → “bmbvupcfft” no. But if it’s a Caesar shift of -1
Given the rest of the phrase “ly tyz mhjbt msryt fy alatwbys…” — could be Arabic written in Latin script? “fy” = “في” (in), “alatwbys” = “الأتوبيس” (the bus). Yes! This looks like (Caesar cipher). Let's verify:
Let’s try on “ly” = “my” (l→m, y→z: “mz” no).
Given the complexity, I’ll guess the puzzle’s completion is likely: So “alatwbys” with t instead of u
Let’s instead guess the plaintext language is Arabic in Latin script, cipher is ROT1 (A→B). Then to decode, shift back 1:
(download the bus in Egypt) — playing on “Download- byhss…” being a clue to decode as “Download- al autobees fi masr” but with letters shifted.
Better approach: Maybe they encoded English words by shifting each letter by +1, but the phrase “Download-” is plaintext. Then “byhss” shifted back 1 → “axgrr” — nonsense.
