package com.javarush.task.task17.task1721;
import java.util.ArrayList;
import java.util.List;
import java.io.*;
import java.io.FileReader;
/*
Транзакционность
*/
public class Solution {
public static List<String> allLines = new ArrayList<String>();
public static List<String> forRemoveLines = new ArrayList<String>();
public static void main(String[] args) {
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
BufferedReader file1= new BufferedReader(new FileReader(reader.readLine()));
BufferedReader file2= new BufferedReader(new FileReader(reader.readLine()));
Solution solution = new Solution();
String line = null;
while(file1.readLine()!= null) {
line = file1.readLine();
allLines.add(line);
if(line.isEmpty()) {
break;
}
}
while(file2.readLine()!= null) {
line = file2.readLine();
forRemoveLines.add(line);
if(line.isEmpty()) {
break;
}
}
solution.joinData();
reader.close();
file1.close();
file2.close();
}
catch(Exception e) {
}
}
public void joinData() throws CorruptedDataException {
if(allLines.containsAll(forRemoveLines)) {
allLines.removeAll(forRemoveLines);
}
else {
allLines.clear();
}
throw new CorruptedDataException();
}
}