diff --git a/HW_Multithreading/src/Counter.java b/HW_Multithreading/src/Counter.java
index c310ca7..a87fd07 100644
--- a/HW_Multithreading/src/Counter.java
+++ b/HW_Multithreading/src/Counter.java
@@ -5,15 +5,15 @@ public Counter(int count) {
         this.count = count;
     }
 
-    public void increment(){
+    public synchronized void increment(){
         count ++;
     }
 
-    public void decrement(){
+    public  synchronized void decrement(){
         count --;
     }
 
-    public int getCountValue(){
+    public  int getCountValue(){
         return count;
     }
 }
diff --git a/HW_Multithreading/src/Main.java b/HW_Multithreading/src/Main.java
index 7046417..41abda6 100644
--- a/HW_Multithreading/src/Main.java
+++ b/HW_Multithreading/src/Main.java
@@ -1,2 +1,35 @@
 public class Main {
+    public static void main(String[] args) throws InterruptedException {
+
+        Counter count=new Counter(0);
+
+
+
+        Runnable myThread1 = ()->{
+        for (int i = 0; i <10 ; i++) {
+            count.increment();
+            System.out.println(count.getCountValue()+ " value from increment");
+        }
+
+        };
+        myThread1.run();
+        Thread t1=new Thread(myThread1);
+        t1.start();
+
+        Runnable myThread2=()->{
+            for (int i = 0; i <10 ; i++){
+                count.decrement();
+                System.out.println(count.getCountValue()+ " value from decrement");
+            }
+        };
+        myThread2.run();
+        Thread t2=new Thread(myThread2);
+        t2.start();
+
+        t1.join();
+        t2.join();
+
+
+        System.out.println(count.getCountValue()+ " value from Main");
+    }
 }
diff --git a/HW_Multithreading/src/MyThread.java b/HW_Multithreading/src/MyThread.java
new file mode 100644
index 0000000..7ee4867
--- /dev/null
+++ b/HW_Multithreading/src/MyThread.java
@@ -0,0 +1,28 @@
+public class MyThread implements Runnable {
+    private Counter count;
+   // Thread t;
+
+    public MyThread(Counter count) {
+        this.count = count;
+       /* t=new Thread();
+        t.start();*/
+    }
+
+
+    @Override
+    public void run() {
+        /*for (int i = 0; i <10 ; i++) {
+            if (count.getCountValue() == 0) {
+                count.increment();
+             System.out.println(count.getCountValue()+ " value from increment");
+
+            } else {
+                count.decrement();
+               System.out.println(count.getCountValue()+ " value from decrement");
+            }
+
+
+        }*/
+
+    }
+}