In a certain code language, 'SCREEN' is coded as 'LCCPAQ'. What is the code for 'SKILLS' in that code language ?

QJJGIQ

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 :

REVERSE AND -2

SCREEN =  NEERCS

N → (-2) → L

E → (-2) → C

E → (-2) → C

R → (-2) → P

C → (-2) → A

S → (-2) → Q

SIMILARLY

SKILLS = SLLIKS

S → (-2) → Q

L → (-2) → J

L → (-2) → J

I → (-2) → G

K → (-2) → I

S → (-2) → Q