diff --git a/build.gradle b/build.gradle
index aac8154..1511cd7 100644
--- a/build.gradle
+++ b/build.gradle
@@ -13,6 +13,9 @@ repositories {
 }
 
 dependencies {
+	implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
+	implementation 'com.h2database:h2:2.1.210'
+
 	implementation 'org.springframework.boot:spring-boot-starter-web'
 	testImplementation 'org.springframework.boot:spring-boot-starter-test'
 }
diff --git a/src/main/java/ru/IP_LabWorks/IP/configuration/TypeConfiguration.java b/src/main/java/ru/IP_LabWorks/IP/TypeCalculator/configuration/TypeConfiguration.java
similarity index 66%
rename from src/main/java/ru/IP_LabWorks/IP/configuration/TypeConfiguration.java
rename to src/main/java/ru/IP_LabWorks/IP/TypeCalculator/configuration/TypeConfiguration.java
index 97be210..858f11c 100644
--- a/src/main/java/ru/IP_LabWorks/IP/configuration/TypeConfiguration.java
+++ b/src/main/java/ru/IP_LabWorks/IP/TypeCalculator/configuration/TypeConfiguration.java
@@ -1,11 +1,11 @@
-package ru.IP_LabWorks.IP.configuration;
+package ru.IP_LabWorks.IP.TypeCalculator.configuration;
 
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import ru.IP_LabWorks.IP.domain.TypeArray;
-import ru.IP_LabWorks.IP.domain.TypeDouble;
-import ru.IP_LabWorks.IP.domain.TypeInt;
-import ru.IP_LabWorks.IP.domain.TypeString;
+import ru.IP_LabWorks.IP.TypeCalculator.domain.TypeInt;
+import ru.IP_LabWorks.IP.TypeCalculator.domain.TypeArray;
+import ru.IP_LabWorks.IP.TypeCalculator.domain.TypeDouble;
+import ru.IP_LabWorks.IP.TypeCalculator.domain.TypeString;
 
 @Configuration
 public class TypeConfiguration {
diff --git a/src/main/java/ru/IP_LabWorks/IP/controllers/MainController.java b/src/main/java/ru/IP_LabWorks/IP/TypeCalculator/controllers/MainController.java
similarity index 89%
rename from src/main/java/ru/IP_LabWorks/IP/controllers/MainController.java
rename to src/main/java/ru/IP_LabWorks/IP/TypeCalculator/controllers/MainController.java
index 4b94c54..78fdc9f 100644
--- a/src/main/java/ru/IP_LabWorks/IP/controllers/MainController.java
+++ b/src/main/java/ru/IP_LabWorks/IP/TypeCalculator/controllers/MainController.java
@@ -1,11 +1,9 @@
-package ru.IP_LabWorks.IP.controllers;
+package ru.IP_LabWorks.IP.TypeCalculator.controllers;
 
-import org.springframework.stereotype.Service;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
-import ru.IP_LabWorks.IP.domain.ITypeInterface;
-import ru.IP_LabWorks.IP.service.TypeService;
+import ru.IP_LabWorks.IP.TypeCalculator.service.TypeService;
 
 @RestController
 public class MainController {
diff --git a/src/main/java/ru/IP_LabWorks/IP/domain/ITypeInterface.java b/src/main/java/ru/IP_LabWorks/IP/TypeCalculator/domain/ITypeInterface.java
similarity index 78%
rename from src/main/java/ru/IP_LabWorks/IP/domain/ITypeInterface.java
rename to src/main/java/ru/IP_LabWorks/IP/TypeCalculator/domain/ITypeInterface.java
index a85610a..f3994ac 100644
--- a/src/main/java/ru/IP_LabWorks/IP/domain/ITypeInterface.java
+++ b/src/main/java/ru/IP_LabWorks/IP/TypeCalculator/domain/ITypeInterface.java
@@ -1,4 +1,4 @@
-package ru.IP_LabWorks.IP.domain;
+package ru.IP_LabWorks.IP.TypeCalculator.domain;
 
 public interface ITypeInterface<T> {
     T Method1(T value1, T value2);
diff --git a/src/main/java/ru/IP_LabWorks/IP/domain/TypeArray.java b/src/main/java/ru/IP_LabWorks/IP/TypeCalculator/domain/TypeArray.java
similarity index 95%
rename from src/main/java/ru/IP_LabWorks/IP/domain/TypeArray.java
rename to src/main/java/ru/IP_LabWorks/IP/TypeCalculator/domain/TypeArray.java
index 8619bbd..bcabb4b 100644
--- a/src/main/java/ru/IP_LabWorks/IP/domain/TypeArray.java
+++ b/src/main/java/ru/IP_LabWorks/IP/TypeCalculator/domain/TypeArray.java
@@ -1,6 +1,5 @@
-package ru.IP_LabWorks.IP.domain;
+package ru.IP_LabWorks.IP.TypeCalculator.domain;
 
-import java.lang.reflect.Array;
 import java.util.ArrayList;
 
 public class TypeArray implements ITypeInterface<ArrayList<Integer>> {
diff --git a/src/main/java/ru/IP_LabWorks/IP/domain/TypeDouble.java b/src/main/java/ru/IP_LabWorks/IP/TypeCalculator/domain/TypeDouble.java
similarity index 91%
rename from src/main/java/ru/IP_LabWorks/IP/domain/TypeDouble.java
rename to src/main/java/ru/IP_LabWorks/IP/TypeCalculator/domain/TypeDouble.java
index ab0e64b..3fa6a28 100644
--- a/src/main/java/ru/IP_LabWorks/IP/domain/TypeDouble.java
+++ b/src/main/java/ru/IP_LabWorks/IP/TypeCalculator/domain/TypeDouble.java
@@ -1,4 +1,4 @@
-package ru.IP_LabWorks.IP.domain;
+package ru.IP_LabWorks.IP.TypeCalculator.domain;
 
 public class TypeDouble implements ITypeInterface<Double> {
 
diff --git a/src/main/java/ru/IP_LabWorks/IP/domain/TypeInt.java b/src/main/java/ru/IP_LabWorks/IP/TypeCalculator/domain/TypeInt.java
similarity index 91%
rename from src/main/java/ru/IP_LabWorks/IP/domain/TypeInt.java
rename to src/main/java/ru/IP_LabWorks/IP/TypeCalculator/domain/TypeInt.java
index 18b5891..301b9a9 100644
--- a/src/main/java/ru/IP_LabWorks/IP/domain/TypeInt.java
+++ b/src/main/java/ru/IP_LabWorks/IP/TypeCalculator/domain/TypeInt.java
@@ -1,4 +1,4 @@
-package ru.IP_LabWorks.IP.domain;
+package ru.IP_LabWorks.IP.TypeCalculator.domain;
 
 
 public class TypeInt implements ITypeInterface<Integer> {
diff --git a/src/main/java/ru/IP_LabWorks/IP/domain/TypeString.java b/src/main/java/ru/IP_LabWorks/IP/TypeCalculator/domain/TypeString.java
similarity index 92%
rename from src/main/java/ru/IP_LabWorks/IP/domain/TypeString.java
rename to src/main/java/ru/IP_LabWorks/IP/TypeCalculator/domain/TypeString.java
index 5ff82d1..5e9a6f4 100644
--- a/src/main/java/ru/IP_LabWorks/IP/domain/TypeString.java
+++ b/src/main/java/ru/IP_LabWorks/IP/TypeCalculator/domain/TypeString.java
@@ -1,4 +1,4 @@
-package ru.IP_LabWorks.IP.domain;
+package ru.IP_LabWorks.IP.TypeCalculator.domain;
 
 public class TypeString implements ITypeInterface<String> {
 
diff --git a/src/main/java/ru/IP_LabWorks/IP/service/TypeService.java b/src/main/java/ru/IP_LabWorks/IP/TypeCalculator/service/TypeService.java
similarity index 93%
rename from src/main/java/ru/IP_LabWorks/IP/service/TypeService.java
rename to src/main/java/ru/IP_LabWorks/IP/TypeCalculator/service/TypeService.java
index 9fc67c2..41a6f87 100644
--- a/src/main/java/ru/IP_LabWorks/IP/service/TypeService.java
+++ b/src/main/java/ru/IP_LabWorks/IP/TypeCalculator/service/TypeService.java
@@ -1,13 +1,10 @@
-package ru.IP_LabWorks.IP.service;
+package ru.IP_LabWorks.IP.TypeCalculator.service;
 
-import ru.IP_LabWorks.IP.domain.ITypeInterface;
+import ru.IP_LabWorks.IP.TypeCalculator.domain.ITypeInterface;
 import org.springframework.stereotype.Service;
 import org.springframework.context.ApplicationContext;
 
-import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.Collection;
-import java.util.Collections;
 import java.util.stream.Collectors;
 
 @Service
diff --git a/src/main/java/ru/IP_LabWorks/IP/University/Model/Group.java b/src/main/java/ru/IP_LabWorks/IP/University/Model/Group.java
new file mode 100644
index 0000000..ba343f7
--- /dev/null
+++ b/src/main/java/ru/IP_LabWorks/IP/University/Model/Group.java
@@ -0,0 +1,12 @@
+package ru.IP_LabWorks.IP.University.Model;
+
+import jakarta.persistence.*;
+
+@Entity
+@Table(name = "groups")
+public class Group {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+    private String name;
+}
diff --git a/src/main/java/ru/IP_LabWorks/IP/University/Model/Student.java b/src/main/java/ru/IP_LabWorks/IP/University/Model/Student.java
new file mode 100644
index 0000000..4256c3c
--- /dev/null
+++ b/src/main/java/ru/IP_LabWorks/IP/University/Model/Student.java
@@ -0,0 +1,39 @@
+package ru.IP_LabWorks.IP.University.Model;
+import jakarta.persistence.*;
+
+import java.util.List;
+import java.util.Objects;
+
+@Entity
+@Table(name = "students")
+public class Student {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+    private String name;
+    private Integer age;
+    @ManyToMany(cascade = CascadeType.ALL)
+    @JoinTable(name = "student_subject",
+            joinColumns = @JoinColumn(name = "student_id"),
+            inverseJoinColumns = @JoinColumn(name = "subject_id"))
+    private List<Subject> subjects;
+
+    public Student(String name, Integer age) {
+        this.name = name;
+        this.age = age;
+    }
+
+    public Long getId() { return id; }
+    public String getName() { return name; }
+    public void setName(String name) { this.name = name; }
+    public Integer getAge() { return age;}
+    public void setAge(Integer age) { this.age = age; }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Student student = (Student) o;
+        return Objects.equals(id, student.id);
+    }
+}
diff --git a/src/main/java/ru/IP_LabWorks/IP/University/Model/Subject.java b/src/main/java/ru/IP_LabWorks/IP/University/Model/Subject.java
new file mode 100644
index 0000000..f5c4091
--- /dev/null
+++ b/src/main/java/ru/IP_LabWorks/IP/University/Model/Subject.java
@@ -0,0 +1,33 @@
+package ru.IP_LabWorks.IP.University.Model;
+
+import jakarta.persistence.*;
+
+import java.util.List;
+import java.util.Objects;
+
+@Entity
+@Table(name = "subjects")
+public class Subject {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+    private String name;
+    @ManyToMany(mappedBy = "subjects")
+    private List<Student> students;
+
+    public Subject(String name) {
+        this.name = name;
+    }
+
+    public Long getId() { return id; }
+    public String getName() { return name; }
+    public void setName(String name) { this.name = name; }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Subject subject = (Subject) o;
+        return Objects.equals(id, subject.id);
+    }
+}
diff --git a/src/main/java/ru/IP_LabWorks/IP/University/Service/StudentService.java b/src/main/java/ru/IP_LabWorks/IP/University/Service/StudentService.java
new file mode 100644
index 0000000..65f6b5a
--- /dev/null
+++ b/src/main/java/ru/IP_LabWorks/IP/University/Service/StudentService.java
@@ -0,0 +1,4 @@
+package ru.IP_LabWorks.IP.University.Service;
+
+public class StudentService {
+}
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index 8b13789..da7b0b1 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -1 +1,11 @@
-
+spring.main.banner-mode=off
+#server.port=8080
+spring.datasource.url=jdbc:h2:file:./data
+spring.datasource.driverClassName=org.h2.Driver
+spring.datasource.username=sa
+spring.datasource.password=password
+spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
+spring.jpa.hibernate.ddl-auto=update
+spring.h2.console.enabled=true
+spring.h2.console.settings.trace=false
+spring.h2.console.settings.web-allow-others=false
diff --git a/src/test/java/ru/IP_LabWorks/IP/IpApplicationTests.java b/src/test/java/ru/IP_LabWorks/IP/IpApplicationTests.java
index fd8c835..aa8e3a9 100644
--- a/src/test/java/ru/IP_LabWorks/IP/IpApplicationTests.java
+++ b/src/test/java/ru/IP_LabWorks/IP/IpApplicationTests.java
@@ -4,7 +4,7 @@ import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
-import ru.IP_LabWorks.IP.service.TypeService;
+import ru.IP_LabWorks.IP.TypeCalculator.service.TypeService;
 
 @SpringBootTest
 class IpApplicationTests {