diff --git a/.gitignore b/.gitignore
index f68d1099..0705add9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,4 +26,6 @@ bin/
 .vscode/
 
 ### Mac OS ###
-.DS_Store
\ No newline at end of file
+.DS_Store
+.idea/caches/
+out/
diff --git a/src/main/kotlin/ArchiveListScreen.kt b/src/main/kotlin/ArchiveListScreen.kt
new file mode 100644
index 00000000..967e390b
--- /dev/null
+++ b/src/main/kotlin/ArchiveListScreen.kt
@@ -0,0 +1,23 @@
+class ArchiveListScreen : Screen {
+    override fun show(repo: Repository, input: InputReader): NavCommand {
+        val items = mutableListOf<MenuItem>()
+        items.add(
+            MenuItem("Создать архив") {
+                NavCommand.Push(CreateArchiveScreen())
+            }
+        )
+        repo.archives.forEach { archive ->
+            items.add(
+                MenuItem(archive.name) {
+                    NavCommand.Push(NoteListScreen(archive))
+                }
+            )
+        }
+        items.add(
+            MenuItem("Выход") {
+                NavCommand.Exit
+            }
+        )
+        return Menu("Список архивов:", items, input).run()
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/CreateArchiveScreen.kt b/src/main/kotlin/CreateArchiveScreen.kt
new file mode 100644
index 00000000..c31555c8
--- /dev/null
+++ b/src/main/kotlin/CreateArchiveScreen.kt
@@ -0,0 +1,19 @@
+class CreateArchiveScreen : Screen {
+    override fun show(repo: Repository, input: InputReader): NavCommand {
+        println("Создание архива")
+        println("Введите название архива (0 — назад)")
+
+        while (true) {
+            val name = input.readLine("Название: ").trim()
+            if (name == "0") return NavCommand.Pop
+            if (name.isBlank()) {
+                println("Название не может быть пустым. Попробуйте ещё раз.\n")
+                continue
+            }
+            repo.archives.add(Archive(name))
+            println("Архив \"$name\" создан.\n")
+            return NavCommand.Pop
+        }
+
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/CreateNoteScreen.kt b/src/main/kotlin/CreateNoteScreen.kt
new file mode 100644
index 00000000..65199bea
--- /dev/null
+++ b/src/main/kotlin/CreateNoteScreen.kt
@@ -0,0 +1,32 @@
+class CreateNoteScreen(private val archive: Archive):Screen{
+    override fun show(repo:Repository,input:InputReader):NavCommand{
+        println("Создание заметки (архив: ${archive.name})")
+        println("Введите название заметки (0 — назад)")
+        val title: String
+        while (true){
+            val t = input.readLine("Название: ").trim()
+            if (t=="0")return NavCommand.Pop
+            if(t.isBlank()){
+                println("Название не может быть пустым. Попробуйте ещё раз.\n")
+                continue
+            }
+            title = t
+            break
+        }
+        println("\nВведите текст заметки (0 — назад)")
+        val content:String
+        while(true){
+            val c = input.readLine("Текст: ")
+            if (c.trim()=="0") return NavCommand.Pop
+            if (c.isBlank()){
+                println("Текст не может быть пустым. Попробуйте ещё раз.\n")
+                continue
+            }
+            content = c
+            break
+        }
+        archive.notes.add(Note(title,content))
+        println("\nЗаметка \"$title\" создана.\n")
+        return NavCommand.Pop
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/InputReader.kt b/src/main/kotlin/InputReader.kt
new file mode 100644
index 00000000..846639fd
--- /dev/null
+++ b/src/main/kotlin/InputReader.kt
@@ -0,0 +1,10 @@
+import java.util.Scanner
+
+class InputReader {
+    private val scanner = Scanner(System.`in`)
+;
+    fun readLine(prompt: String? = null): String {
+        if (prompt != null) print(prompt)
+        return scanner.nextLine()
+    }
+}
diff --git a/src/main/kotlin/Main.kt b/src/main/kotlin/Main.kt
index aade54c5..90c2915d 100644
--- a/src/main/kotlin/Main.kt
+++ b/src/main/kotlin/Main.kt
@@ -1,3 +1,7 @@
-fun main(args: Array<String>) {
-    println("Hello World!")
+fun main() {
+    val repo = Repository()
+    val input = InputReader()
+    val navigator = Navigator(repo,input)
+
+    navigator.start(ArchiveListScreen())
 }
\ No newline at end of file
diff --git a/src/main/kotlin/Menu.kt b/src/main/kotlin/Menu.kt
new file mode 100644
index 00000000..6c60952e
--- /dev/null
+++ b/src/main/kotlin/Menu.kt
@@ -0,0 +1,34 @@
+data class MenuItem(
+    val title: String,
+    val action: () -> NavCommand
+)
+
+class Menu(
+    private val header: String,
+    private val items: List<MenuItem>,
+    private val input: InputReader
+) {
+    fun run(): NavCommand {
+        while (true) {
+            if (header.isNotBlank()) println(header)
+            items.forEachIndexed { index, item ->
+                println("$index.${item.title}")
+            }
+            val raw = input.readLine("Выберите пункт:").trim()
+            val choice = raw.toIntOrNull()
+
+            if (choice == null) {
+                println("Нужно ввести цифру. Попробуйте еще раз.\n")
+                continue
+            }
+            if (choice !in items.indices) {
+                println("Нет пункта с номером $choice. Попробуйте ещё раз.\n")
+                continue
+            }
+
+            println()
+            return items[choice].action()
+
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/Models.kt b/src/main/kotlin/Models.kt
new file mode 100644
index 00000000..c8fd7bd0
--- /dev/null
+++ b/src/main/kotlin/Models.kt
@@ -0,0 +1,9 @@
+class Note(
+    val title: String,
+    val content: String
+)
+
+class Archive(
+    val name: String,
+    val notes: MutableList<Note> = mutableListOf()
+)
\ No newline at end of file
diff --git a/src/main/kotlin/Navigation.kt b/src/main/kotlin/Navigation.kt
new file mode 100644
index 00000000..56bf39d7
--- /dev/null
+++ b/src/main/kotlin/Navigation.kt
@@ -0,0 +1,36 @@
+interface Screen {
+    fun show(repo: Repository, input: InputReader): NavCommand
+}
+
+sealed class NavCommand {
+    data class Push(val screen: Screen) : NavCommand()
+    object Pop : NavCommand()
+    object Exit : NavCommand()
+    object Stay : NavCommand()
+}
+
+class Navigator(
+    private val repo: Repository,
+    private val input: InputReader
+) {
+    private val stack: MutableList<Screen> = mutableListOf()
+
+    fun start(root: Screen) {
+        stack.add(root)
+
+        while (stack.isNotEmpty()) {
+            val current = stack.last()
+
+            when (val cmd = current.show(repo, input)) {
+                is NavCommand.Push -> stack.add(cmd.screen)
+
+                NavCommand.Pop -> {
+                    if (stack.size > 1) stack.removeAt(stack.lastIndex) else return
+                }
+
+                NavCommand.Exit -> return
+                NavCommand.Stay -> { }
+            }
+        }
+    }
+}
diff --git a/src/main/kotlin/NoteListScreen.kt b/src/main/kotlin/NoteListScreen.kt
new file mode 100644
index 00000000..b01a11b7
--- /dev/null
+++ b/src/main/kotlin/NoteListScreen.kt
@@ -0,0 +1,27 @@
+class NoteListScreen(private val archive: Archive) : Screen {
+    override fun show(repo: Repository, input: InputReader): NavCommand {
+        val items = mutableListOf<MenuItem>()
+
+        items.add(
+            MenuItem("Создать заметку") {
+                NavCommand.Push(CreateNoteScreen(archive))
+            }
+        )
+
+        archive.notes.forEach { note ->
+            items.add(
+                MenuItem(note.title) {
+                    NavCommand.Push(NoteViewScreen(note))
+                }
+            )
+        }
+
+        items.add(
+            MenuItem("Назад") {
+                NavCommand.Pop
+            }
+        )
+
+        return Menu("Архив: ${archive.name}\nСписок заметок:", items, input).run()
+    }
+}
diff --git a/src/main/kotlin/NoteViewScreen.kt b/src/main/kotlin/NoteViewScreen.kt
new file mode 100644
index 00000000..611abde7
--- /dev/null
+++ b/src/main/kotlin/NoteViewScreen.kt
@@ -0,0 +1,14 @@
+class NoteViewScreen(private val note: Note) : Screen {
+    override fun show(repo: Repository, input: InputReader): NavCommand {
+        println("Заметка: ${note.title}")
+        println("------------")
+        println(note.content)
+        println("------------\n")
+
+        val items = listOf(
+            MenuItem("Назад") { NavCommand.Pop }
+        )
+
+        return Menu("", items, input).run()
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/Repository.kt b/src/main/kotlin/Repository.kt
new file mode 100644
index 00000000..fe27a6e1
--- /dev/null
+++ b/src/main/kotlin/Repository.kt
@@ -0,0 +1,3 @@
+class Repository(
+    val archives: MutableList<Archive> = mutableListOf()
+)
\ No newline at end of file