In a certain code language. ‘JUPITER’ is Written as ‘KSSEYYY‘, and ‘URANUS’ is written as ‘VPDJZM’. How will ‘EARTH’ be written in the same code language?

Given: In a certain code language. ‘JUPITER’ is Written as ‘KSSEYYY‘, and ‘URANUS’ is written as ‘VPDJZM’. 

Logic: Letters are alternatively increase & decrease by +1, -2, +3, -4, +5, -6, +7

'JUPITER’ is Written as ‘KSSEYYY‘​

J+1=K, U-2=S, P+3=S, I-4=E, T+5=Y, E-6=Y, R+7=Y

​‘URANUS’ is written as ‘VPDJZM’

U+1=V, R-2=P, A+3=D, N-4=J, U+5=Z, S-6=M

So, EARTH is written as FYUPM