# Future population estimation# Your namecurrentPopulation = 307357870birth = 7death = 13immigrant = 35yearsPredicting = int(raw_input("For how many years you want prediction? "))#convert years to secondsyearsInSeconds = yearsPredicting * 365 * 24 * 60 * 60#take float valuesfuturePopulation = currentPopulation + float(yearsInSeconds) / birthfuturePopulation -= float(yearsInSeconds) / deathfuturePopulation += float(yearsInSeconds) / immigrant#we can't have "half" of person, so we take lower boundfuturePopulation = int(futurePopulation)print "Future population estimation is: ", futurePopulation