This question is to be answered using the coding and decoding of the letters in the English alphabet as given below

For r $=1,2,\mathrm{3.....13}$ letters, the code for the $r^{th}$  letter is ${(27+r)}^{th}$  letter. 

For r $=14,\mathrm{15.....26}$ letters the code for $r^{th}$  letter is ${(r+13)}^{th}$  letter

For decoding inverse process is followed

 

What is the code for the word SOLICIT?

           r =   $\begin{array}{ccccccccccccccc} & & 1& 2& 3& 4& 5& 6& 7& 8& 9& 10& 11& 12& 13\\ & & \text{A}& \text{B}& \text{C}& \text{D}& \text{E}& \text{F}& \text{G}& \text{H}& \text{I}& \text{J}& \text{K}& \text{L}& \text{M}\end{array}$

$\begin{array}{cccccccccccccc}\text{code}(27-\text{r})& \text{Z}& \text{Y}& \text{X}& \text{W}& \text{V}& \text{U}& \text{T}& \text{S}& \text{R}& \text{Q}& \text{P}& \text{O}& N\\ & 26& 25& 24& 23& 22& 21& 20& 19& 18& 17& 16& 15& 14\end{array}$

For $\text{r}=14,15,16,\mathrm{.....26}$ letters, the code for $r^{th}$ letter is ${(\text{r}+13)}^{\text{th}}$ letter.

            r =     $\begin{array}{cccccccccccccc} & 14& 15& 16& 17& 18& 19& 20& 21& 22& 23& 24& 25& 26\\ & \text{N}& \text{O}& \text{P}& \text{Q}& \text{R}& \text{S}& \text{T}& \text{U}& \text{V}& \text{W}& \text{X}& \text{Y}& \text{Z}\end{array}$

$\begin{array}{cccccccccccccc}\text{code}(\text{r}+13)& \text{A}& \text{B}& \text{C}& \text{D}& \text{E}& \text{F}& \text{G}& \text{H}& \text{I}& \text{J}& \text{K}& \text{L}& \text{M}\\ & 27& 28& 29& 30& 31& 32& 33& 34& 35& 36& 37& 38& 39\\ & 1& 2& 3& 4& 5& 6& 7& 8& 9& 10& 11& 12& 13\end{array}$

$\begin{array}{ccccccc}\text{S}& \text{O}& \text{L}& \text{I}& \text{C}& \text{I}& \text{T}\\ \text{F}& \text{B}& \text{O}& \text{R}& \text{X}& R& \text{G}\end{array}$

Code for SOLICIT is FBORXRG.