diff --git a/Lesson2/HomeWork/Task1/Adapter.java b/Lesson2/HomeWork/Task1/Adapter.java
new file mode 100644
index 0000000..c04b5d1
--- /dev/null
+++ b/Lesson2/HomeWork/Task1/Adapter.java
@@ -0,0 +1,36 @@
+package task1sensors;
+
+import java.time.LocalDateTime;
+
+public class Adapter implements MeteoSensor  {
+    ST500Info sensor;
+
+    public Adapter(ST500Info sensor) {
+        this.sensor = sensor;
+    }
+
+    @Override
+    public int getId() {
+        return sensor.getData().identifier();
+    }
+
+    @Override
+    public Float getTemperature() {
+        return (float)sensor.getData().temperature();
+    }
+
+    @Override
+    public Float getHumidity() {
+        return 0f;
+    }
+
+    @Override
+    public Float getPressure() {
+        return 0f;
+    }
+
+    @Override
+    public LocalDateTime getDateTime() {
+        return LocalDateTime.now();
+    }
+}
diff --git a/Lesson2/HomeWork/Task1/MS200.java b/Lesson2/HomeWork/Task1/MS200.java
index 067d7b8..18745f0 100644
--- a/Lesson2/HomeWork/Task1/MS200.java
+++ b/Lesson2/HomeWork/Task1/MS200.java
@@ -1,25 +1,26 @@
+package task1sensors;
 import java.time.*;
 
 public class MS200 implements MeteoSensor{
-	int id;
-	
-	public MS200(int id){
-		this.id = id;
-	}
-	
-	public int getId(){
-		return id;
-	}
-	public Float getTemperature(){
-		return (float)20;
-	}
-	public Float getHumidity(){
-		return (float)60;
-	}
-	public Float getPressure(){
-		return (float)752.4;
-	}
-	public LocalDateTime getDateTime(){
-		return  LocalDateTime.now();
-	}
+    int id;
+
+    public MS200(int id){
+        this.id = id;
+    }
+
+    public int getId(){
+        return id;
+    }
+    public Float getTemperature(){
+        return (float)20;
+    }
+    public Float getHumidity(){
+        return (float)60;
+    }
+    public Float getPressure(){
+        return (float)752.4;
+    }
+    public LocalDateTime getDateTime(){
+        return  LocalDateTime.now();
+    }
 }
\ No newline at end of file
diff --git a/Lesson2/HomeWork/Task1/MeteoSensor.java b/Lesson2/HomeWork/Task1/MeteoSensor.java
index 0f3b0c4..fe4fd87 100644
--- a/Lesson2/HomeWork/Task1/MeteoSensor.java
+++ b/Lesson2/HomeWork/Task1/MeteoSensor.java
@@ -1,9 +1,11 @@
-import java.time.*;
+package task1sensors;
 
-public interface MeteoSensor{
-	int getId(); // идентификатор датчика
-	Float getTemperature(); // температура датчика
-	Float getHumidity(); // влажность
-	Float getPressure(); // давление
-	LocalDateTime getDateTime(); // время чтения данных датчика
-}
\ No newline at end of file
+import java.time.LocalDateTime;
+
+public interface MeteoSensor {
+    int getId(); // идентификатор датчика
+    Float getTemperature(); // температура датчика
+    Float getHumidity(); // влажность
+    Float getPressure(); // давление
+    LocalDateTime getDateTime(); // время чтения данных датчика
+}
diff --git a/Lesson2/HomeWork/Task1/MeteoStation.java b/Lesson2/HomeWork/Task1/MeteoStation.java
index 822f885..72ac71d 100644
--- a/Lesson2/HomeWork/Task1/MeteoStation.java
+++ b/Lesson2/HomeWork/Task1/MeteoStation.java
@@ -1,10 +1,17 @@
-public class MeteoStation{
-	public static void main(String[] args){
-		MeteoStore meteoDb = new MeteoStore();
-		
-		MeteoSensor ms200_1 = new MS200(1);
-		meteoDb.save(ms200_1);
-		
-		// Здесь надо вызвать метод getData у класса ST500Info. Полученные данные отправить в метод save объекта meteoDb
-	}
-}
\ No newline at end of file
+package task1sensors;
+
+public class MeteoStation {
+    public static void main(String[] args){
+        MeteoStore meteoDb = new MeteoStore();
+
+        MeteoSensor ms200_1 = new MS200(1);
+        ST500Info st500_2 = new ST500Info();
+
+        Adapter adapter = new Adapter(st500_2);
+
+        meteoDb.save(ms200_1);
+        meteoDb.save(adapter);
+
+        // Здесь надо вызвать метод getData у класса ST500Info. Полученные данные отправить в метод save объекта meteoDb
+    }
+}
diff --git a/Lesson2/HomeWork/Task1/MeteoStore.java b/Lesson2/HomeWork/Task1/MeteoStore.java
index 09aca6e..91c4ad2 100644
--- a/Lesson2/HomeWork/Task1/MeteoStore.java
+++ b/Lesson2/HomeWork/Task1/MeteoStore.java
@@ -1,7 +1,8 @@
-class MeteoStore{
-	// сохранение данных в базу
-	boolean save(MeteoSensor meteoSensor){
-		System.out.format("Saving data from sensor [%d] at %s%n temperature - %f ; humidity - %f ; pressure - %f \n\r", meteoSensor.getId(), meteoSensor.getDateTime(), meteoSensor.getTemperature(), meteoSensor.getHumidity(), meteoSensor.getPressure());
-		return true;
-	}
-}
\ No newline at end of file
+package task1sensors;
+
+public class MeteoStore {
+    boolean save(MeteoSensor meteoSensor){
+        System.out.format("Saving data from sensor [%d] at %s%n temperature - %f ; humidity - %f ; pressure - %f \n\r", meteoSensor.getId(), meteoSensor.getDateTime(), meteoSensor.getTemperature(), meteoSensor.getHumidity(), meteoSensor.getPressure());
+        return true;
+    }
+}
diff --git a/Lesson2/HomeWork/Task1/ST500Info.java b/Lesson2/HomeWork/Task1/ST500Info.java
index 72d2bff..965da0a 100644
--- a/Lesson2/HomeWork/Task1/ST500Info.java
+++ b/Lesson2/HomeWork/Task1/ST500Info.java
@@ -1,24 +1,26 @@
-import java.time.*;
+package task1sensors;
 
-class ST500Info{
-	public SensorTemperature getData(){
-		return new SensorTemperature(){
-				public int identifier(){
-					return 1;
-				}
-				public double temperature(){
-					return 22.0;
-				}
-				public int year(){
-					return LocalDateTime.now().getYear();
-				}
-				public int day(){
-					return LocalDateTime.now().getDayOfYear();
-				}
-				public int second(){
-					LocalDateTime now = LocalDateTime.now();
-					return now.getHour()*3600 + now.getMinute()*60 + now.getSecond();
-				}
-		};
-	}
-}
\ No newline at end of file
+import java.time.LocalDateTime;
+
+public class ST500Info {
+    public SensorTemperature getData(){
+        return new SensorTemperature(){
+            public int identifier(){
+                return 1;
+            }
+            public double temperature(){
+                return 22.0;
+            }
+            public int year(){
+                return LocalDateTime.now().getYear();
+            }
+            public int day(){
+                return LocalDateTime.now().getDayOfYear();
+            }
+            public int second(){
+                LocalDateTime now = LocalDateTime.now();
+                return now.getHour()*3600 + now.getMinute()*60 + now.getSecond();
+            }
+        };
+    }
+}
diff --git a/Lesson2/HomeWork/Task1/SensorTemperature.java b/Lesson2/HomeWork/Task1/SensorTemperature.java
index 62d8a85..4acb502 100644
--- a/Lesson2/HomeWork/Task1/SensorTemperature.java
+++ b/Lesson2/HomeWork/Task1/SensorTemperature.java
@@ -1,8 +1,10 @@
-interface SensorTemperature{
-	int identifier(); // идентификатор датчика
-	double temperature(); // температура датчика
-	int year();			 // Год
-	int day();			 // День года
-	int second();		 // Секунда дня
+package task1sensors;
+
+interface SensorTemperature {
+    int identifier(); // идентификатор датчика
+    double temperature(); // температура датчика
+    int year();			 // Год
+    int day();			 // День года
+    int second();		 // Секунда дня
+
 }
-	
\ No newline at end of file
diff --git a/Lesson2/HomeWork/Task2/PrintDecorator.java b/Lesson2/HomeWork/Task2/PrintDecorator.java
new file mode 100644
index 0000000..71e238e
--- /dev/null
+++ b/Lesson2/HomeWork/Task2/PrintDecorator.java
@@ -0,0 +1,19 @@
+package task2report_print;
+
+import java.util.List;
+
+public class PrintDecorator extends Report  {
+    void showOnMonitor(){
+        System.out.println("Output to monitor");
+        for(ReportItem item : items){
+            System.out.format("* %s - %f \n\r", item.getDescription(), item.getAmount());
+        }
+    }
+
+    void saveToFile(String file){
+        System.out.println("Saving to file: " + file);
+        for(ReportItem item : items){
+            System.out.format("%s - %f \n\r", item.getDescription(), item.getAmount());
+        }
+    }
+}
diff --git a/Lesson2/HomeWork/Task2/PrintReport.java b/Lesson2/HomeWork/Task2/PrintReport.java
index 0946320..af07237 100644
--- a/Lesson2/HomeWork/Task2/PrintReport.java
+++ b/Lesson2/HomeWork/Task2/PrintReport.java
@@ -1,9 +1,12 @@
-import java.util.*;
-class PrintReport{
-	public void output(List<ReportItem> items){
-		System.out.println("Output to printer");
-		for(ReportItem item : items){
-			System.out.format("printer %s - %f \n\r", item.getDescription(), item.getAmount());
-		}
-	}
-}
\ No newline at end of file
+package task2report_print;
+
+import java.util.List;
+
+public class PrintReport {
+    public void output(List<ReportItem> items){
+        System.out.println("Output to printer");
+        for(ReportItem item : items){
+            System.out.format("printer %s - %f \n\r", item.getDescription(), item.getAmount());
+        }
+    }
+}
diff --git a/Lesson2/HomeWork/Task2/Programm.java b/Lesson2/HomeWork/Task2/Programm.java
index e124be3..f278dad 100644
--- a/Lesson2/HomeWork/Task2/Programm.java
+++ b/Lesson2/HomeWork/Task2/Programm.java
@@ -1,7 +1,19 @@
-class Programm{
-	public static void main(String[] args){
-		Report report = new Report();
-		report.calculate();
-		report.output();
-	}
-}
\ No newline at end of file
+package task2report_print;
+
+import java.time.LocalDateTime;
+
+public class Programm {
+    public static void main(String[] args){
+
+
+//        Report report = new Report();
+//        report.calculate();
+//        report.output();
+
+        PrintDecorator report = new PrintDecorator();
+        report.calculate();
+        report.output();
+        report.saveToFile("C:/reports/"+ LocalDateTime.now().toString()+".txt");
+        report.showOnMonitor();
+    }
+}
diff --git a/Lesson2/HomeWork/Task2/Report.java b/Lesson2/HomeWork/Task2/Report.java
index c6bf1ec..425a93d 100644
--- a/Lesson2/HomeWork/Task2/Report.java
+++ b/Lesson2/HomeWork/Task2/Report.java
@@ -1,16 +1,20 @@
-import java.util.*;
-class Report{
-	private List<ReportItem> items;	// Отчетные данные
-	
-	// расчет отчетных данных
-	public void calculate(){
-		items =  new ArrayList<ReportItem>();
-		items.add(new ReportItem("First", (float)5));
-		items.add(new ReportItem("Second", (float)6));
-	}
-	
-	public void output(){
-		PrintReport reportPrint = new PrintReport();
-		reportPrint.output(items);
-	}
-}
\ No newline at end of file
+package task2report_print;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Report {
+    protected List<ReportItem> items;	// Отчетные данные
+
+    // расчет отчетных данных
+    public void calculate(){
+        items =  new ArrayList<ReportItem>();
+        items.add(new ReportItem("First", (float)5));
+        items.add(new ReportItem("Second", (float)6));
+    }
+
+    public void output(){
+        PrintReport reportPrint = new PrintReport();
+        reportPrint.output(items);
+    }
+}
diff --git a/Lesson2/HomeWork/Task2/ReportItem.java b/Lesson2/HomeWork/Task2/ReportItem.java
index 3c5cc4d..290667b 100644
--- a/Lesson2/HomeWork/Task2/ReportItem.java
+++ b/Lesson2/HomeWork/Task2/ReportItem.java
@@ -1,15 +1,17 @@
-class ReportItem{
-	private String description;
-	private float amount;
-	
-	public ReportItem(String description, float amount){
-		this.description = description;
-		this.amount = amount;
-	}
-	public String getDescription(){
-		return description;
-	}
-	public float getAmount(){
-		return amount;
-	}
-}
\ No newline at end of file
+package task2report_print;
+
+public class ReportItem {
+    private String description;
+    private float amount;
+
+    public ReportItem(String description, float amount){
+        this.description = description;
+        this.amount = amount;
+    }
+    public String getDescription(){
+        return description;
+    }
+    public float getAmount(){
+        return amount;
+    }
+}
diff --git a/Lesson3/Algorithms/homework/MainClass.java b/Lesson3/Algorithms/homework/MainClass.java
new file mode 100644
index 0000000..4758f0b
--- /dev/null
+++ b/Lesson3/Algorithms/homework/MainClass.java
@@ -0,0 +1,53 @@
+package lesson3;
+import java.util.Arrays;
+
+public class MainClass {
+
+    public static void main(String[] args) {
+        // Задача №1
+        int[] unsorted = {9,3,6,8,4,2,3,9,56,3,2,67,9,4};
+        AlghoritmUtils.insertSort(unsorted);
+        System.out.println(Arrays.toString(unsorted));
+
+        // Задача №2
+        AlghoritmUtils.findFibonachi(20);
+
+    }
+
+}
+
+class AlghoritmUtils {
+
+    static void insertSort(int[] array){
+        for (int i = 0; i < array.length;i++){
+            for (int j = 0; j < array.length; j++) {
+                if (array[i] < array[j]){
+                    swapElements(array, j, i);
+                }
+            }
+        }
+    }
+
+    private static void swapElements(int[] array, int j, int i) {
+        int tmp = array[j];
+        array[j] = array[i];
+        array[i] = tmp;
+    }
+
+    // без сохранения, только вывод данныхб сложность ~O(n)
+    static void findFibonachi(int toNum){
+        int prev = 0;
+        int curr = 1;
+        System.out.println(prev);
+        System.out.println(curr);
+
+        int i = 2;
+        while (i <= toNum){
+            int next = prev + curr;
+            System.out.println(next);
+            prev = curr;
+            curr = next;
+            i++;
+        }
+    }
+}