using System;
using System.Threading;
using System.Linq;
public class Program
{
public static void Main()
var list = new System.Collections.Generic.List<int>{1,1,2,3};
var x1 = list.Where(p=>p==1);
var x2 = list.Count(p=>p==1);
list.Remove(1);
Console.Write(x1.Count().ToString() + " " + x2.ToString());
}