Method is not appleid to the whole branches

sorry i am stuck here, I am inserting values into a list of branches, i have used series and range to identify indicies positions, it has worked well in the first nine branches, but the method has repeated it self till the end of the list , what i want is a randome insertion of these values should be appleid randolmy in the whole list, so i don’t get the same result every new set of lines, thank you for help (23.1 KB)

i think i have found the solution, i should have used a jitter aftter the range and then it works well|!