#include <iostream>
#include <fstream>
#include <vector>

using namespace std;

struct Command {
    string direction;
    int distance;
};

int main() {
    cout << "Advent of Code 2021 - Day 2 Part 1" << endl;

    int x, y = 0;

    ifstream filein("input");
    vector<Command> inputCommands;
    for(string line; getline(filein, line);) {
        int space = line.find(" ");
        inputCommands.push_back(Command {line.substr(0, space), stoi(line.substr(space+1))});
    }

    for(Command cmd : inputCommands) {
        if(cmd.direction == "forward") {
            x += cmd.distance;
        }
        else if (cmd.direction == "down") {
            y += cmd.distance;
        }
        else if(cmd.direction == "up") {
            y -= cmd.distance;
        }
        else {
            cout << "Uh I shouldn't get here in the for cmd loop" << endl;
        }
    }

    cout << x * y << endl;

    return 0;
}