using System;
using System.Linq;
using System.Collections.Generic;

namespace FirstProblem
{
    public class FirstStartUp
    {
        public static void Main()
        {
            int numberOfRows = int.Parse(Console.ReadLine());
            var matrix = new string[numberOfRows][];
            for (int i = 0; i < numberOfRows; i++)
            {
                matrix[i] = Console.ReadLine().Split(new char[] { ' ', ',' }, StringSplitOptions.RemoveEmptyEntries).ToArray();

            }
            string[] comandLine = Console.ReadLine().Split();
            int columHeadPosition = 0;
            for (int i = 0; i < matrix[0].Length; i++)
            {
                if (matrix[0][i] == comandLine[1])
                {
                    columHeadPosition = i;
                    break;
                }


            }
            if (comandLine[0] == "filter")
            {
                string filter = comandLine[2];
                Console.WriteLine(string.Join(" | ", matrix[0]));
                for (int row = 1; row < numberOfRows; row++)
                {
                    if (matrix[row][columHeadPosition] == filter)
                    {
                        Console.WriteLine(string.Join(" | ", matrix[row]));
                    }
                }
            }
            else if (comandLine[0] == "hide")
            {
                string filter = comandLine[1];


                for (int row = 0; row < numberOfRows; row++)
                {
                    for (int col = 0; col < matrix[row].Length; col++)
                    {
                        if (col != columHeadPosition)
                        {
                            if (columHeadPosition == matrix[row].Length -1)
                            {
                                if (col != matrix[row].Length - 1 && col != matrix[row].Length - 2)
                                {
                                    Console.Write(matrix[row][col] + " | ");
                                }
                                else
                                {
                                    Console.Write(matrix[row][col]);
                                }
                            }
                            else
                            {
                                if (col != matrix[row].Length - 1 )
                                {
                                    Console.Write(matrix[row][col] + " | ");
                                }
                                else
                                {
                                    Console.Write(matrix[row][col]);
                                }
                            }


                        }
                    }
                    Console.WriteLine();
                }
            }
            else if (comandLine[0] == "sort")
            {
                string sortHeder = comandLine[1];

                for (int row = 1; row < numberOfRows -1; row++)
                {
                    for (int rowNext = row + 1; rowNext < numberOfRows; rowNext++)
                    {
                        if (matrix[row][columHeadPosition].CompareTo(matrix[rowNext][columHeadPosition]) > 0)
                        {
                            string[] tempRow = matrix[rowNext];
                            matrix[rowNext] = matrix[row];
                            matrix[row] = tempRow;
                        }
                    }

                }
                for (int row = 0; row < numberOfRows; row++)
                {
                    Console.WriteLine(string.Join(" | ", matrix[row]));
                }
            }

        }
    }
}