using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
 
namespace ProgramConsole
{
    public class Program
    {
        public static void Main(string[] args)
        {
            List<string> A = new List<string> { "Personal", "Tech", "Social" };
            List<string> B = new List<string> { "Personal", "Tech", "General" };
 
            var result = A.Except(B).ToList();
 
            foreach (var i in result)
            {
                Console.WriteLine(i);
            }
        }
    }
}

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