AdventOfCodeDay2.cs

void Main()
{
	var input = File.ReadAllLines(@"C:\Users\David\Documents\LINQPad Queries\input-day2.txt");

	var totalPaper = input.Select(i => i.Split('x')).Select(i => i.Select(j => int.Parse(j)).ToList()).Select(i => 2 * i[0] * i[1] + 2 * i[0] * i[2] + 2 * i[1] * i[2] + i.OrderBy(j => j).Take(2).Aggregate((k, l) => k * l)).Sum();
	totalPaper.Dump();

	var totalRibbon = input.Select(i => i.Split('x')).Select(i => i.Select(j => int.Parse(j)).ToList()).Select(i => i[0]*i[1]*i[2] + i.OrderBy(j => j).Take(2).Aggregate((k, l) => 2*k + 2*l)).Sum();
	totalRibbon.Dump();
}