In a certain code language, 'DENTIST' is written as ‘CDMSHRS’ and ‘TOOTH’ is written as ‘SNNSG’, how will 'HEALING' be written in that language?

GDZKHMF

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

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THE LOGIC FOLLOWED HERE IS :

D → (-1) → C

E → (-1) → D

N → (-1) → M

T → (-1) → S

I → (-1) → H

S→ (-1) → R

T → (-1) → S

AND

T → (-1) → S

O → (-1) → N

O → (-1) → N

T → (-1) →  S

T → (-1) →  G

SIMILARLY

H→ (-1) → G

E → (-1) → D

A → (-1) → Z

L → (-1) →  K

I → (-1) →  H

N → (-1) → M

G → (-1) →  F