using System;
using System.Collections.Generic;
using System.Linq;
namespace _4.Ununion_Lists
{
class Program
{
static void Main(string[] args)
{
List<int> primalList = Console.ReadLine()
.Split(' ')
.Select(int.Parse)
.ToList();
int n = int.Parse(Console.ReadLine());
for (int i = 0; i < n; i++)
{
List<int> currentList = Console.ReadLine()
.Split(' ')
.Select(int.Parse)
.ToList();
for (int cnt = 0; cnt < currentList.Count; cnt++)
{
int currentElement = currentList[cnt];
if (primalList.Contains(currentElement))
{
primalList.RemoveAll(e => e == currentElement);
} else
{
primalList.Add(currentElement);
}
}
}
primalList.Sort();
Console.WriteLine(string.Join(" ", primalList));
}
}
}
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