How can the code be made easier to understand?

Question

Python

I don't understand how list loops work.

w, n = [input() for i in range(int(input()))], int(input())
print(''.join((i[n - 1] for i in w if 1 <= n <= len(i))))

Answer 1

Such complex nested constructs should never be used, they are very difficult to read. By the way, list comprehensions will not add any performance here. It's better to make the code more readable:

n = int(input())
w = []
count = int(input())
for _ in range(count):
    w.append(input())

for i in w:
    if 1 <= n <= len(i):
        print(i[n - 1], end='')