Pizzas&Tuples&Golden-Medal, C#

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//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            string hdr="(QTY, FLAVOR)\n";
            PizzasList<int,string> xs=new PizzasList<int,string>();
            
            xs.Add(3,"MARGHERITA");xs.Add(1,"BRASIL (OURO) 3×0 ITÁLIA");xs.Add(2,"MUSHROOM");
            xs.Add(1,"Brasil (ouro) 3×0 Itália");xs.Add(3,"margherita");xs.Add(2,"mushroom");
            
            xs.Sort(); // IMPORTANT FEATURE, FOR ***FREE***
            
            foreach(var x in xs){Console.WriteLine(hdr+x);hdr=string.Empty;} // ToString(), another IMPORTANT FEATURE, ***FOR FREE***
        }
        
        public class PizzasList<QTY,FLAVOR>:List<Tuple<QTY,FLAVOR>>{
            public void Add(QTY i,FLAVOR s){Add(Tuple.Create(i,s));}
        }
    }
}

Show compiler warnings [ + ] Show input
Compilation time: 0,14 sec, absolute running time: 0,11 sec, cpu time: 0,09 sec, average memory usage: 15 Mb, average nr of threads: 3