In a certain code language, ‘SURGEON’ is written as '5-3-6-17-19-9-10' then how will ‘DENTIST’ be written in the same code language?

20-19-10-4-15-5-4

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:

THE PLACES VALUES OF REVERSE LETTERS WHEN MOVED THREE STEPS BACKWARD , THE CODE FOR THE WORD IS OBTAINED

S → OPPOSITE → H → (-3) → 5

U → OPPOSITE → F → (-3) → 3

R → OPPOSITE → I → (-3) → 6

G → OPPOSITE → T → (-3) → 17

E → OPPOSITE → V → (-3) → 19

O → OPPOSITE → L → (-3) → 9

N → OPPOSITE → M → (-3) → 10

SIMILARLY

D → OPPOSITE → W → (-3) → 20

E → OPPOSITE →V → (-3) → 19

N → OPPOSITE → M → (-3) → 10

T → OPPOSITE → G → (-3) → 4

I → OPPOSITE → R → (-3) → 15

S → OPPOSITE →H → (-3) → 5

T → OPPOSITE → G → (-3) → 4