diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index f318e6c..57d14b4 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -12,6 +12,29 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.Activities"
-        tools:targetApi="31" />
+        tools:targetApi="31">
+        <activity
+            android:name=".ActivityD"
+            android:autoRemoveFromRecents="true"
+            android:exported="false" />
+        <activity
+            android:name=".ActivityC"
+            android:autoRemoveFromRecents="true"
+            android:exported="false" />
+        <activity
+            android:name=".ActivityB"
+            android:autoRemoveFromRecents="true"
+            android:exported="false" />
+        <activity
+            android:name=".ActivityA"
+            android:autoRemoveFromRecents="true"
+            android:exported="true"
+            android:launchMode="singleTask">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
 
 </manifest>
\ No newline at end of file
diff --git a/app/src/main/java/otus/gpb/homework/activities/ActivityA.kt b/app/src/main/java/otus/gpb/homework/activities/ActivityA.kt
new file mode 100644
index 0000000..fd4a20b
--- /dev/null
+++ b/app/src/main/java/otus/gpb/homework/activities/ActivityA.kt
@@ -0,0 +1,26 @@
+package otus.gpb.homework.activities
+
+import android.content.Intent
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import android.util.Log
+import android.widget.Button
+
+class ActivityA : AppCompatActivity(R.layout.activity_a) {
+
+    override fun onStart() {
+        super.onStart()
+        Log.d(this::class.simpleName, "Started in stack $taskId")
+        findViewById<Button>(R.id.openActivityBButton).setOnClickListener {
+            val intent = Intent(this, ActivityB::class.java).apply {
+                flags = Intent.FLAG_ACTIVITY_MULTIPLE_TASK or Intent.FLAG_ACTIVITY_NEW_TASK
+            }
+            startActivity(intent)
+        }
+    }
+
+    override fun onNewIntent(intent: Intent?) {
+        Log.d(this::class.simpleName, "onNewIntent called")
+        super.onNewIntent(intent)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/otus/gpb/homework/activities/ActivityB.kt b/app/src/main/java/otus/gpb/homework/activities/ActivityB.kt
new file mode 100644
index 0000000..914416d
--- /dev/null
+++ b/app/src/main/java/otus/gpb/homework/activities/ActivityB.kt
@@ -0,0 +1,19 @@
+package otus.gpb.homework.activities
+
+import android.content.Intent
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import android.util.Log
+import android.widget.Button
+
+class ActivityB : AppCompatActivity(R.layout.activity_b) {
+
+    override fun onStart() {
+        super.onStart()
+        Log.d(this::class.simpleName, "Started in stack $taskId")
+        findViewById<Button>(R.id.openActivityCButton).setOnClickListener {
+            val intent = Intent(this, ActivityC::class.java)
+            startActivity(intent)
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/otus/gpb/homework/activities/ActivityC.kt b/app/src/main/java/otus/gpb/homework/activities/ActivityC.kt
new file mode 100644
index 0000000..8f2626b
--- /dev/null
+++ b/app/src/main/java/otus/gpb/homework/activities/ActivityC.kt
@@ -0,0 +1,31 @@
+package otus.gpb.homework.activities
+
+import android.content.Intent
+import android.util.Log
+import android.widget.Button
+import androidx.appcompat.app.AppCompatActivity
+
+class ActivityC : AppCompatActivity(R.layout.activity_c) {
+
+    override fun onStart() {
+        super.onStart()
+        Log.d(this::class.simpleName, "Started in stack $taskId")
+        findViewById<Button>(R.id.openActivityDButton).setOnClickListener {
+            val intent = Intent(this, ActivityD::class.java)
+            finishAffinity()
+            startActivity(intent)
+        }
+        findViewById<Button>(R.id.openActivityAButton).setOnClickListener {
+            val intent = Intent(this, ActivityA::class.java)
+            startActivity(intent)
+        }
+        findViewById<Button>(R.id.closeActivityCButton).setOnClickListener {
+            finish()
+        }
+        findViewById<Button>(R.id.closeStackButton).setOnClickListener {
+            val intent = Intent(this, ActivityA::class.java)
+            finishAffinity()
+            startActivity(intent)
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/otus/gpb/homework/activities/ActivityD.kt b/app/src/main/java/otus/gpb/homework/activities/ActivityD.kt
new file mode 100644
index 0000000..abdcde9
--- /dev/null
+++ b/app/src/main/java/otus/gpb/homework/activities/ActivityD.kt
@@ -0,0 +1,13 @@
+package otus.gpb.homework.activities
+
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import android.util.Log
+
+class ActivityD : AppCompatActivity(R.layout.activity_d) {
+
+    override fun onStart() {
+        super.onStart()
+        Log.d(this::class.simpleName, "Started in stack $taskId")
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_a.xml b/app/src/main/res/layout/activity_a.xml
new file mode 100644
index 0000000..9b74662
--- /dev/null
+++ b/app/src/main/res/layout/activity_a.xml
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="#f44336"
+    tools:context=".ActivityA">
+
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:text="Activity A"
+        android:textSize="22dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.5"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.5" />
+
+    <Button
+        android:id="@+id/openActivityBButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="24dp"
+        android:text="Open Activity B"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.5"
+        app:layout_constraintStart_toStartOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_b.xml b/app/src/main/res/layout/activity_b.xml
new file mode 100644
index 0000000..22d4c2c
--- /dev/null
+++ b/app/src/main/res/layout/activity_b.xml
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="#4caf50"
+    tools:context=".ActivityB">
+
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:text="Activity B"
+        android:textSize="22dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.5"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.5" />
+
+    <Button
+        android:id="@+id/openActivityCButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="24dp"
+        android:text="Open Activity C"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.5"
+        app:layout_constraintStart_toStartOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_c.xml b/app/src/main/res/layout/activity_c.xml
new file mode 100644
index 0000000..8308f77
--- /dev/null
+++ b/app/src/main/res/layout/activity_c.xml
@@ -0,0 +1,68 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="#2196f3"
+    tools:context=".ActivityC">
+
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:text="Activity C"
+        android:textSize="22dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.5"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.5" />
+
+    <Button
+        android:id="@+id/openActivityAButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="174dp"
+        android:text="Open Activity A"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.5"
+        app:layout_constraintStart_toStartOf="parent" />
+
+    <Button
+        android:id="@+id/openActivityDButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="124dp"
+        android:text="Open Activity D"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.5"
+        app:layout_constraintStart_toStartOf="parent" />
+
+    <Button
+        android:id="@+id/closeActivityCButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="74dp"
+        android:text="Close Activity C"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.5"
+        app:layout_constraintStart_toStartOf="parent" />
+
+    <Button
+        android:id="@+id/closeStackButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="24dp"
+        android:text="Close Stack"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.5"
+        app:layout_constraintStart_toStartOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_d.xml b/app/src/main/res/layout/activity_d.xml
new file mode 100644
index 0000000..bb95e3f
--- /dev/null
+++ b/app/src/main/res/layout/activity_d.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="#ffeb3b"
+    tools:context=".ActivityD">
+
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:text="Activity D"
+        android:textSize="22dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.5"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.5" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file