const input = await Deno.readTextFile("./input.txt").then(
    (f) =>
        f.split("\n").reduce<[number[], number[]]>(
            (
                acc,
                cur,
            ) => [[...acc[0], +cur.split("   ")[0]], [
                ...acc[1],
                +cur.split("   ")[1],
            ]],
            [[], []],
        ),
).then(([first, second]) => [first.toSorted(), second.toSorted()]).then((
    [first, second],
) => first.reduce((acc, cur, i) => acc + Math.abs(cur - second[i]), 0));
console.log("Answer = " + input);