Help me in solving PREQ11 problem

help
,
1

My issue

t = int(input())
for i in range(t):
N = int(input())
print(2*N)
Traceback (most recent call last):
File “/mnt/sol.py”, line 3, in
t = int(input())
^^^^^^^^^^^^
ValueError: invalid literal for int() with base 10: ‘’

My code

# Debug the following code to solve the problem

t = int(input())
for i in range(t):
    N = int(input())
    print(2*N)

Learning course: Design and Analysis of Algorithms
Problem Link: Debug this code - Why is this code incorrect in Design and Analysis of Algorithms