python - Two text files with 1,096 individual decimal numbers - subtract each of the elements and total the sum -

i have 2 text files contain 1,096 values (these features extracted neural network layer).

i want take first element of the first text file , subtract first element of second text file , on through 1,096 decimal values.

i want take sum of these subtractions , store in variable later use.

i new python i'm unsure best way access each element - aiming method similar euclidean distance method.

assuming files 1.txt , 2.txt

import decimal dc  open('1.txt','rb') fin1, open('2.txt','rb') fin2:   sub_sum = 0   x,y in zip(fin1,fin2):     sub_sum += dc.decimal(x) - dc.decimal(y)