Advent of Code: Day 1

--- Part One ---

Fuel Requirements

At the first Go / No Go poll, every Elf is Go until the Fuel Counter-Upper. They haven't determined the amount of fuel required yet.
Fuel required to launch a given module is based on its mass. Specifically, to find the fuel required for a module, take its mass, divide by three, round down, and subtract 2.
For example:

What is the sum of the fuel requirements for all of the modules on your spacecraft?

Your puzzle answer via the Python solution was 3416712.