diff --git a/lab04_3.cpp b/lab04_3.cpp
new file mode 100644
index 0000000..b302ade
--- /dev/null
+++ b/lab04_3.cpp
@@ -0,0 +1,88 @@
+#include <stdio.h>
+#include <stddef.h>
+#include <locale.h>
+
+// Шаг 1: Определение структуры Student
+struct Student {
+    char name[17];
+    unsigned short year;
+    float average_score;
+    unsigned int gender : 1;
+    unsigned int courses_completed;
+    struct Student* group_leader;
+};
+
+// Функция для вывода информации о студенте
+void print_student_info(struct Student* student, int index) {
+    printf("Name: %s\n", student->name);
+    printf("Year of reception: %d\n", student->year);
+    printf("Average score: %.1f\n", student->average_score);
+    printf("Gender (0-1): %d\n", student->gender);
+    printf("Courses: %d\n", student->courses_completed);
+    printf("Group leader: %p\n", student->group_leader);
+    printf("\n");
+}
+
+// Функция для вывода адресов и размеров полей
+void print_addresses_and_sizes(struct Student* student, int index) {
+    printf("Address of element %d: %p\n", index, (void*)student);
+    printf("Size of element: %lu\n", sizeof(*student));
+    printf("Address of element %d:\n", index);
+    printf("  name: %p\n", (void*)student->name);
+    printf("  year: %p\n", (void*)&student->year);
+    printf("  average_score: %p\n", (void*)&student->average_score);
+    printf("  courses_completed: %p\n", (void*)&student->courses_completed);
+    printf("  group_leader: %p\n", (void*)&student->group_leader);
+    printf("\n");
+}
+
+// Функция для вывода шестнадцатеричного представления данных
+void print_hex_representation(struct Student* student) {
+    unsigned char* ptr = (unsigned char*)student;
+    printf("Array size: %lu\n", sizeof(struct Student));
+    for (size_t j = 0; j < sizeof(struct Student); j++) {
+        printf("%02X ", ptr[j]);
+        if ((j + 1) % 16 == 0) printf("\n");
+    }
+    printf("\n");
+}
+
+// Функция для вывода двоичного представления данных
+void print_binary_representation(struct Student* student) {
+    unsigned char* ptr = (unsigned char*)student;
+    for (size_t j = 0; j < sizeof(struct Student); j++) {
+        for (int i = 7; i >= 0; i--) {
+            printf("%d", (ptr[j] >> i) & 1);
+        }
+        printf(" ");
+    }
+    printf("\n");
+}
+
+int main() {
+    setlocale(LC_ALL, "Russian");
+
+    // Шаг 3: Объявление и заполнение массива структур Student
+    struct Student students[3] = {
+        {"Alex", 2020, 4.5, 0, 2, NULL},
+        {"Julia", 2021, 3.8, 1, 1, NULL},
+        {"Sofia", 2022, 4.2, 1, 3, NULL}
+    };
+
+    // Установим старосту для Alex и Julia
+    students[0].group_leader = &students[2];
+    students[1].group_leader = &students[2];
+
+    // Шаг 4: Вывод информации
+    printf("Array size: %lu\n", sizeof(students));
+    printf("Address of array: %p\n", (void*)students);
+
+    for (int i = 0; i < 3; i++) {
+        print_student_info(&students[i], i);
+        print_addresses_and_sizes(&students[i], i);
+        print_hex_representation(&students[i]);
+        print_binary_representation(&students[i]);
+    }
+
+    return 0;
+}