def MaxPrime(N): while(N % 2 == 0): N = N / 2 return N def sumMaxPrime(N): sum = 0 for x in xrange(1, N + 1): if x % 2 != 0: sum = sum + x else: sum = sum + MaxPrime(x) print sum if __name__ == '__main__': sumMaxPrime(400)
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