Given the pattern, this might be (A↔Z, B↔Y, etc.). Let's test first word:
But "wkhrm" is "thank" if shift -3? Let's check carefully: t(20)+3=23=w ✓, h(8)+3=11=k ✓, a(1)+3=4=d? No, "wkhrm" 4th letter r=18, 18-3=15→p. So no. Download- shrmwtt tjyb shyqha ydklha ksha wkhrm ...
Let me decode it first.
Check: D(4) + 15 = 19 → s ✓ o(15) + 15 = 30 mod26 = 4 → e (but h in cipher? No, 2nd letter of cipher is h (8). So not matching). So not that. Given the pattern, this might be (A↔Z, B↔Y, etc
But let’s try (or –15) sometimes used: No. Given the pattern