If in a certain language, PROSE is coded as PPOQE, how is LIGHT coded in that code ?

If in a certain language, PROSE is coded as PPOQE, how is LIGHT coded in that code ?

Explanation

PROSE =P P O Q E

LIGHT = LGGFT

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The rule followed in coding PROSE is

P+0=P

R-2=P

O+0=O

S-2=Q

E+0=E

Therefore, the code for LIGHT is

L+0=L

I-2=G

G+0=G

H-2=F

T+0=T

Code is LGGFT