In a certain code language, 'MAGIC' is written as 'RVLDH'. How will 'LOCKER' be written in that language?

Let's check the relation between the letters of MAGIC and RVLDH:Let's reverse the word MAGIC $\to$ C, I, G, A, M and trace the shift to RVLDH:C (+15) ... doesn't look direct.Let's check a cross pattern or step shifts:M (+5) $\to$ RA (+21) $\to$ VLet's analyze reverse alphabetical positioning:Opposite letters of MAGIC:M $\leftrightarrow$ N (14)A $\leftrightarrow$ Z (26)G $\leftrightarrow$ T (20)I $\leftrightarrow$ R (18)C $\leftrightarrow$ X (24)Now let's compare these opposite values with the positions of RVLDH:R=18, V=22, L=12, D=4, H=8.Let's look at a simpler direct shift from the tail end (reverse order shift):C (3) + 5 = H (8) [Last letter of RVLDH]I (9) - 5 = D (4) [4th letter of RVLDH]G (7) + 5 = L (12) [3rd letter of RVLDH]A (1) - 5 = V (22) [2nd letter of RVLDH]M (13) + 5 = R (18) [1st letter of RVLDH]Wow! The pattern is: Reverse the letters of the word, and apply alternating shifts of $+5,-5,+5,-5,+5$.Let's double-check:M (13) + 5 = 18 (R) $\to$ goes to 1st placeA (1) - 5 = 22 (V) $\to$ goes to 2nd placeG (7) + 5 = 12 (L) $\to$ goes to 3rd placeI (9) - 5 = 4 (D) $\to$ goes to 4th placeC (3) + 5 = 8 (H) $\to$ goes to 5th placeLet's apply this exact rule ($+5,-5,+5,-5,+5,-5$) to LOCKER:L (12) + 5 = 17 (Q)O (15) - 5 = 10 (J)C (3) + 5 = 8 (H)K (11) - 5 = 6 (F)E (5) + 5 = 10 (J)R (18) - 5 = 13 (M)Putting the results in order from first to last gives QJHFJM.