In a certain code language, JONAIL is written as IRMDHO. How will PLMUTG be written as in code language?

OOLXSJ

1   2    3    4   5    6   7     8    9  10  11  12  13

 A   B   C    D   E    F   G    H    I    J    K    L   M

 ↓    ↓    ↓    ↓    ↓     ↓   ↓    ↓     ↓   ↓    ↓    ↓    ↓

 Z   Y    X   W   V    U   T    S    R   Q   P    O   N

26  25  24  23  22  21  20  19  18  17  16  15  14

**********************************************************

THE LOGIC FOLLOWED HERE IS:

J → (-1) → I

O → (+3) → R

N → (-1) → M

A → (+3) → D

I  → (-1) → H

L → (+3) → O

SIMILARLY

P → (-1) → O

L → (+3) → O

M → (-1) → L

U → (+3) → X

T  → (-1) → S

G → (+3) → J