diff --git a/src/main/java/kz/edu/nu/cs/exercise/State1.java b/src/main/java/kz/edu/nu/cs/exercise/State1.java
new file mode 100644
index 0000000..0fb17db
--- /dev/null
+++ b/src/main/java/kz/edu/nu/cs/exercise/State1.java
@@ -0,0 +1,20 @@
+package kz.nu.edu.cs.exercise;
+
+public class State1 extends State {
+
+  public State1(StateContext sc) {
+    this.accept = false;
+    this.sc = sc;
+  }
+  
+  @Override
+  public void actionA() {
+    sc.setCurrentState(sc.state2);
+  }
+  
+  @Override
+  public void actionB() {
+    sc.setCurrentState(sc.state1);
+  }
+}  
+   
diff --git a/src/main/java/kz/edu/nu/cs/exercise/State2.java b/src/main/java/kz/edu/nu/cs/exercise/State2.java
new file mode 100644
index 0000000..d06472f
--- /dev/null
+++ b/src/main/java/kz/edu/nu/cs/exercise/State2.java
@@ -0,0 +1,20 @@
+package kz.nu.edu.cs.exercise;
+
+public class State2 extends State {
+
+  public State2(StateContext sc) {
+    this.accept = false;
+    this.sc = sc;
+  }
+  
+  @Override
+  public void actionA() {
+    sc.setCurrentState(sc.state3);
+  }
+  
+  @Override
+  public void actionB() {
+    sc.setCurrentState(sc.state1);
+  }
+}  
+   
diff --git a/src/main/java/kz/edu/nu/cs/exercise/State3.java b/src/main/java/kz/edu/nu/cs/exercise/State3.java
new file mode 100644
index 0000000..8d9d839
--- /dev/null
+++ b/src/main/java/kz/edu/nu/cs/exercise/State3.java
@@ -0,0 +1,20 @@
+package kz.nu.edu.cs.exercise;
+
+public class State3 extends State {
+
+  public State3(StateContext sc) {
+    this.accept = true;
+    this.sc = sc;
+  }
+  
+  @Override
+  public void actionA() {
+    sc.setCurrentState(sc.state3);
+  }
+  
+  @Override
+  public void actionB() {
+    sc.setCurrentState(sc.state2);
+  }
+}  
+   
diff --git a/src/main/java/kz/edu/nu/cs/exercise/StateContext.java b/src/main/java/kz/edu/nu/cs/exercise/StateContext.java
index 3b154c4..20b2940 100644
--- a/src/main/java/kz/edu/nu/cs/exercise/StateContext.java
+++ b/src/main/java/kz/edu/nu/cs/exercise/StateContext.java
@@ -12,19 +12,15 @@ public StateContext() {
     }
 
     public void actionA() {
-        // complete this method by
-        // delegation to the current state
+        currentState.actionA();
     }
 
     public void actionB() {
-        // complete this method
-        // delegate to the current state
+        currentState.actionB();
     }
 
     public boolean inAcceptState() {
-        // complete this method and return correct value
-        // delegate to the current state
-        return false;
+        return currentState.isAccept();
     }
 
     public State getCurrentState() {