AoC 2016 Day 1 Part 1 with Python

day1part1.py

#!/usr/bin/env python3

import sys

steps = next(sys.stdin).split(", ")

x = 0
y = 0

for step in steps:
    if step[0] == "R":
        x, y = -y, x
    else:
        x, y = y, -x

    x += int(step[1:])

print(abs(x) + abs(y))