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# Author Problem Lang Verdict Time Memory Sent Judged  
123609782 Practice:
keytime 		1182A - 40 Python 3 Accepted 62 ms 6564 KB 2021-07-24 16:26:49 2021-07-24 16:26:49
→ Source 
n=int(input())
print(0 if n%2 else 2**(n//2))
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Time: ? ms, memory: ? KB
Verdict: ?
Input
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Participant's output
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Jury's answer
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