If in a certain code language, "STUBBORN" is written as "TUVCANQM". How is "TRAINING" written in that code language?

Let's study the shifting pattern for "STUBBORN" $\to$ "TUVCANQM":$\text{S}\stackrel{+1}{\to }\text{T}$$\text{T}\stackrel{+1}{\to }\text{U}$$\text{U}\stackrel{+1}{\to }\text{V}$$\text{B}\stackrel{+1}{\to }\text{C}$$\text{B}\stackrel{-1}{\to }\text{A}$$\text{O}\stackrel{-1}{\to }\text{N}$$\text{R}\stackrel{-1}{\to }\text{Q}$$\text{N}\stackrel{-1}{\to }\text{M}$ The first 4 letters are increased by $+1$, and the last 4 letters are decreased by $-1$.Applying this exact rule to "TRAINING":$\text{T}\stackrel{+1}{\to }\text{U}$$\text{R}\stackrel{+1}{\to }\text{S}$$\text{A}\stackrel{+1}{\to }\text{B}$$\text{I}\stackrel{+1}{\to }\text{J}$$\text{N}\stackrel{-1}{\to }\text{M}$$\text{I}\stackrel{-1}{\to }\text{H}$$\text{N}\stackrel{-1}{\to }\text{M}$$\text{G}\stackrel{-1}{\to }\text{F}$ Hence, the code is USBJMHFM.