How to get the value when the first 2 loops are completed

If I want to get the value when the last loop completed,I can use last_a=a

But how to get the value when the first 2 loops are completed

Input:

A=[20,13,15,25,24,17,14,19,23,11]
B=[32,43,65,21,13,16,53,52,35,38]
last_a=last_b=0
last_last_a=0
last_last_b=0
for a,b in zip(A, B):
    if a<last_a and b<last_b:
        pass
    last_a=a
    last_b=b
    print(last_last_a)

Expected Output

0
0
20
13
15
25
24
17
14
19

>Solution :

You need to add last_last_a = last_a before assigning to last_a. Also, you need to print before making those assignments, as these assignments serve for the next iteration of the loop. So:

for a,b in zip(A, B):
    if a<last_a and b<last_b:
        pass
    print(last_last_a)    # moved up
    last_last_a = last_a  # <-- added
    last_a=a
    last_b=b

As you don’t print last_last_b, there is no need for that name.