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  1. N = int(input())
  2. numbers = set()
  3. for i in range(N):
  4. num = int(input())
  5. numbers = add(num)
  6.  
  7. for k in sorted(numbers):
  8. print(k)# your code goes here
Runtime error #stdin #stdout #stderr 0.12s 23580KB
stdin
5
2
2
2
8
8
stdout
Standard output is empty
stderr
Traceback (most recent call last):
  File "./prog.py", line 5, in <module>
NameError: name 'add' is not defined