After the Avengers war, Rocket misses groot, so he decides to make a time travelling device to save groot.
The device is created in a finite number of steps. Each step takes some amount of fusion energy and gives back some of this energy as drift energy.
effective Power = total fusion energy - total drift energy

fusion energy for first step is 2 and gets quadrupled in every next step, i.e. 8 for second, 32 for third step ans so on. 

drift energy of a step is  drift_factor_of_the_step * Log(fusion_energy_of_that_step). 

Initially, drift factor is 1 and gets doubled in every next step, i.e. 2 for second, 4 for third step and so on.
Help Rocket find minimum number of steps such that effective Power spent is at least 300000000000000000.

NOTE You do not need to create a program for this problem you have to write your answers of given input in given code snippet

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