In a code language, FRIEND is written as GQJDOC. How will PEACE bewritten in that language?

As per the question,

FRIEND is written as GQJDOC

$$F \ \underrightarrow{+1} \ G$$

$$R \ \underrightarrow{-1} \ Q$$

$$I \ \underrightarrow{+1} \ J$$

$$E \ \underrightarrow{-1} \ D$$

$$D\ \underrightarrow{+1} \ E$$

Similarly

PEACE can be coaded as QDBBF

$$P \ \underrightarrow{+1} \ Q$$

$$E \ \underrightarrow{-1} \ D$$

$$A \ \underrightarrow{+1} \ B$$

$$C \ \underrightarrow{-1} \ B$$

$$E\ \underrightarrow{+1} \ F$$