Where is error?

Question

Here is my code
one = int()
two = int()
sum = int(one + two)
print(sum)

Answer 1

# maybe you meant:

one = int(input())
two = int(input())
sum = one + two
print(sum)

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int(obj) -> converts obj to integer (number)
input() -> asks user for input in console

Answer 2

Thnx. I remember input)