diff --git a/1ano/2semestre/poo/src/aula12/ex3/Main.java b/1ano/2semestre/poo/src/aula12/ex3/Main.java
new file mode 100644
index 0000000..3d473d2
--- /dev/null
+++ b/1ano/2semestre/poo/src/aula12/ex3/Main.java
@@ -0,0 +1,54 @@
+package aula12.ex3;
+
+import utils.UserInput;
+
+import java.io.FileReader;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.*;
+
+public class Main {
+    public static void main(String[] args) throws IOException {
+        List<Movie> movies = new ArrayList<>();
+        TreeSet<String> titles = new TreeSet<>();
+
+        List<Movie> unsortedMovies = new ArrayList<>();
+        Scanner reader = new Scanner(new FileReader("datafiles/aula12/movies.txt"));
+        reader.nextLine();
+        while (reader.hasNextLine()) {
+            String[] line = reader.nextLine().split("\t");
+            Movie movie = new Movie(line[0], Double.parseDouble(line[1]), line[2], line[3], Integer.parseInt(line[4]));
+            unsortedMovies.add(movie);
+            titles.add(movie.title().toLowerCase());
+        }
+
+
+        for (String title : titles)
+            movies.add(unsortedMovies.stream().filter(movie -> movie.title().equalsIgnoreCase(title)).findFirst().get());
+
+        System.out.println(movies);
+        System.out.println("\n\n\n");
+
+        System.out.println(movies.stream().sorted(Comparator.comparing(Movie::score).reversed()).toList());
+        System.out.println("\n\n\n");
+
+        System.out.println(movies.stream().sorted(Comparator.comparing(Movie::duration)).toList());
+        System.out.println("\n\n\n");
+
+        TreeMap<String, Integer> genres = new TreeMap<>();
+        movies.forEach(movie -> genres.put(movie.genre(), genres.getOrDefault(movie.genre(), 0) + 1));
+
+        System.out.println(genres);
+        System.out.println("\n\n\n");
+
+        String genre = UserInput.input(new Scanner(System.in), "Genre: ");
+        movies.stream().filter(movie -> movie.genre().equalsIgnoreCase(genre) && movie.score() > 60).forEach(movie -> {
+            try {
+                Files.writeString(Path.of("datafiles/aula12/myselection.txt"), movie.toString());
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        });
+    }
+}
diff --git a/1ano/2semestre/poo/src/aula12/ex3/Movie.java b/1ano/2semestre/poo/src/aula12/ex3/Movie.java
new file mode 100644
index 0000000..af68069
--- /dev/null
+++ b/1ano/2semestre/poo/src/aula12/ex3/Movie.java
@@ -0,0 +1,8 @@
+package aula12.ex3;
+
+public record Movie(String title, double score, String rating, String genre, int duration) {
+    @Override
+    public String toString() {
+        return String.format("%s\n\tScore: %.1f\n\tRating: %s\n\tGenre: %s\n\tDuration: %d\n\n", title, score, rating, genre, duration);
+    }
+}