I'm almost sure the energy you'd save in your lifetime by doing it the optimal way would be less than the energy you spent to write this post...
(Oleg and Olga are the masculine and feminine variants of the same name, which is nearly obvious from their spellings but you'd never guess that from their Russian pronunciations alone)
BTW, see http://www.numericana.com/answer/p-adic.htm#decimal for solutions to x^3 = x, x^4 = x etc.
...and my votes count twice because I have lots of karma, even though it's from eight years ago?
Sounds like a solution in search for a problem TBH