#!/usr/bin/python3

def part_1(input):
    h_pos = 0
    depth = 0
    for line in input:
        step = line.split()
        if 'forward' == step[0]:
            h_pos += int(step[1])
        elif 'up' == step[0]:
            depth -= int(step[1])
        elif 'down' == step[0]:
            depth += int(step[1])
    result = h_pos * depth
    print("Part 1 result:", result)


def part_2(input):
    h_pos = 0
    depth = 0
    aim = 0
    for line in input:
        step = line.split()
        if 'forward' == step[0]:
            h_pos += int(step[1])
            depth += aim * int(step[1])
        elif 'up' == step[0]:
            aim -= int(step[1])
        elif 'down' == step[0]:
            aim += int(step[1])
    result = h_pos * depth
    print("Part 2 result:", result)


input = list()
with open('input.txt') as fp:
    input = fp.readlines()

part_1(input)
part_2(input)