* lets start with the `6`   as in `-201,6 +` basically says 6 lines of context were needed to make the patch distinguishable and diminish the risk to apply to wrong file, *3* lines before and also after
 * the `201` as in `-201...+201` added to the nr (*3*) computed in the step above marks the line nr in the modified document which contains line one of the after appliing the patch
 * the `102` as in `+201,102` simply counts the lines added to the modified document after appliing the patch