In a certain code language, 'COUNTRY' is written as 'BOWKXLF'. How will 'DESPAIR' be written in that language?

UFDMVBG

Given; In a certain code language, 'COUNTRY' is written as 'BOWKXLF'. 

The logic followed here is;

In the first letter we add 03 and shift to last letter 

In second, we minus 03 and shift to the second last letter

In third, we add 03 and shift to the third last letter and so on.

Thus, DESPAIR will be written as UFDMVBG