def solve(self, cipher):
        N = int(cipher[0])
        # initial = 1  # wrong var name
        height = 1  # initialization
        for cycle in xrange(N):
            if cycle & 1 == 0:
                height *= 2
            else:
                height += 1

        return height
Removes an IP from an instance.
dataset/ETHPy150Open algorhythms/HackerRankAlgorithms/Utopian Tree.py/Solution.solve--crossover with--dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/api/openstack/compute/legacy_v2/contrib/multinic.py/MultinicController._remove_fixed_ip