[Q] Root but Different Build??? Help!! topic

I've finally worked up the nerve to ROOT. I went to Cf-Auto-Root and found my model (SM-N910P). The build numbers are different. The build on Cf site is KTU84P.N910PVPU1ANIE and the build on my phone shows KTU84P.N910PVPU1AN2.

Notice the last numbers: ...IE and 2.

Is it okay that the build digits/numbers do not match??

Help and advice.

Many thanks!!!