public override void PartOne(IInput input, IOutput output)
{
var totalMass = input
.AsInts()
.Select(CalculateFuel)
.Sum();
output.WriteProperty("Total Mass", $"{totalMass:N0}");
}
public override void PartTwo(IInput input, IOutput output)
{
var lines = input.AsInts();
var items = FindNThatSumTo(lines, 3, 2020);
var result = items.Aggregate(1, (acc, i) => acc * i);
output.WriteProperty("Numbers", string.Join(", ", items));
output.WriteProperty("Result", result);
}