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16 lines
258 B
16 lines
258 B
#!/usr/bin/python3
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import sys
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def calcsize(cycles):
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tmp = 2**((cycles+3)//2)
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if cycles % 2 == 1:
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return tmp - 2
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return tmp - 1
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def main():
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total = int(sys.stdin.readline())
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for i in range(total):
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print(calcsize(int(sys.stdin.readline())))
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main()
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