private static IEnumerable <int> ParseInput()
{
var countParser = Int.AndL(Newline);
var seqParser = Many(Spaces.AndRTry(Int));
var entryParser = Tuple(countParser, seqParser);
var allEntries = Many1(entryParser);
var path = Path.Combine(AppContext.BaseDirectory, "data.txt");
var result = allEntries.RunOnFile(path).GetResult();
return(result[0].Item2);
}