diff --git a/.github/workflows/ci-cpp-build.yml b/.github/workflows/ci-cpp-build.yml
index e67cfaf..b4042a8 100644
--- a/.github/workflows/ci-cpp-build.yml
+++ b/.github/workflows/ci-cpp-build.yml
@@ -1,4 +1,4 @@
-name: C++ Build (Сборка проекта)
+name: C++ Build and Run (Сборка и запуск проекта)
 
 on:
   push:
@@ -10,16 +10,78 @@ on:
 
 jobs:
   build:
+    name: Build Docker Image
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      # 1. Checkout the repository
+      - name: Checkout repository
+        uses: actions/checkout@v4
 
-      - name: Run docker-compose
-        uses: hoverkraft-tech/compose-action@v2.0.1
+      # 2. Set up Docker Buildx
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      # 3. Cache Docker layers
+      - name: Cache Docker layers
+        id: cache-docker-layers
+        uses: actions/cache@v3
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-docker-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-docker-
+
+      # 4. Build Docker image using Docker Compose
+      - name: Build Docker image with Docker Compose
+        run: |
+          docker compose build bmstu
+          docker compose up bmstu
+          # Save the image as a tarball
+          docker save bmstu_cpp_course-bmstu:latest -o cpp_course_image.tar
+
+      # 5. Upload Docker image tarball as artifact
+      - name: Upload Docker image tarball
+        uses: actions/upload-artifact@v3
+        with:
+          name: cpp_course-image
+          path: cpp_course_image.tar
+
+      # 6. Save Docker layer cache
+      - name: Save Docker layer cache
+        if: always()
+        uses: actions/upload-artifact@v3
+        with:
+          name: docker-layer-cache
+          path: /tmp/.buildx-cache
+
+  run-script:
+    name: Run run.sh Script
+    runs-on: ubuntu-latest
+    needs: build
+
+    steps:
+      # 1. Download the Docker image tarball artifact
+      - name: Download Docker image tarball
+        uses: actions/download-artifact@v3
         with:
-          compose-file: "docker-compose.yml"
+          name: cpp_course-image
+          path: ./artifacts
 
-      - name:
+      # 2. Load the Docker image into Docker daemon
+      - name: Load Docker image
         run: |
-          docker compose up --build --abort-on-container-exit --exit-code-from bmstu
+          docker load -i ./artifacts/cpp_course_image.tar
+
+      # 3. Create a Docker network (optional, if needed)
+      #- name: Create Docker network
+      #  run: docker network create my-network || echo "Network already exists"
+
+      # 4. Run the Docker container and execute the script
+      - name: Run run.sh Script inside Docker Container
+        run: |
+          docker run --rm -v ${{ github.workspace }}:/cppcourse bmstu_cpp_course-bmstu:latest bash -c "/cppcourse/docker/runtasks/run.sh"
+
+      # 5. (Optional) Bring down any Docker Compose services if previously started
+      #- name: Tear Down Docker Compose (if applicable)
+      #  run: docker compose down
diff --git a/docker-compose.yml b/docker-compose.yml
index 8b60ba8..4cad880 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -6,5 +6,5 @@ services:
     volumes:
       - .:/cpp_bmstu
     working_dir: /cpp_bmstu
-    command: ["/bin/bash", "-c", "cmake -B build -S . && cmake --build build && /cpp_bmstu/docker/run_tasks/run.sh"]
+    command: ["/bin/bash", "-c", "cmake -B build -S . && cmake --build build"]
     container_name: cpp_course
\ No newline at end of file
diff --git a/docker/image/Dockerfile b/docker/image/Dockerfile
index b307941..8647ad0 100644
--- a/docker/image/Dockerfile
+++ b/docker/image/Dockerfile
@@ -2,7 +2,7 @@ FROM ubuntu:22.04
 
 COPY docker/image/install_deps.sh /
 RUN sh install_deps.sh
-
+#COPY . /cpp_course
 ENV TZ=Europe/Moscow
 
 ENV LANG C.UTF-8
@@ -16,5 +16,3 @@ EXPOSE 22
 RUN echo "StrictHostKeyChecking=no" >> /etc/ssh/ssh_config
 RUN mkdir /var/run/sshd
 CMD ["/usr/sbin/sshd", "-D"]
-
-
diff --git a/tasks/task_basic_c/CMakeLists.txt b/tasks/task_basic_c/CMakeLists.txt
index cadb18d..9937087 100644
--- a/tasks/task_basic_c/CMakeLists.txt
+++ b/tasks/task_basic_c/CMakeLists.txt
@@ -2,13 +2,18 @@ message(STATUS "Running tasks/basic_c/CMakeLists.txt")
 set(CMAKE_CXX_STANDARD 26)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 get_filename_component(NAME_EXECUTABLE ${CMAKE_CURRENT_SOURCE_DIR} NAME)
-#glob all path to folder in task_* an
+
+#save all folders in tasks with prefix task_ to array 
 file(GLOB TASKS RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/task_*)
-#find all files in folder with name *.c and *.h and *.cpp *.hpp and add them to the project
+
 foreach(TASK ${TASKS})
-    file(GLOB_RECURSE SOURCES  ${CMAKE_CURRENT_SOURCE_DIR}/${TASK} ${CMAKE_CURRENT_SOURCE_DIR}/${TASK}/*.c ${CMAKE_CURRENT_SOURCE_DIR}/${TASK}/*.h ${CMAKE_CURRENT_SOURCE_DIR}/${TASK}/*.cpp ${CMAKE_CURRENT_SOURCE_DIR}/${TASK}/*.hpp)
-endforeach ()
-message(STATUS "TASKS: ${TASKS}")
+    message(STATUS "FIND IN: " ${TASK})
+    file(GLOB FILES RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}
+            ${CMAKE_CURRENT_SOURCE_DIR}/${TASK}/*.[ch]pp
+            ${CMAKE_CURRENT_SOURCE_DIR}/${TASK}/*.h
+            ${CMAKE_CURRENT_SOURCE_DIR}/${TASK}/*.c)
+    list(APPEND SOURCES ${FILES})
+endforeach()
 message(STATUS "SOURCES: ${SOURCES}")
 add_executable(${NAME_EXECUTABLE} ${SOURCES})
 target_link_libraries(
diff --git a/tasks/task_basic_c/task_int2str/int2str.c b/tasks/task_basic_c/task_int2str/int2str.c
new file mode 100644
index 0000000..3536270
--- /dev/null
+++ b/tasks/task_basic_c/task_int2str/int2str.c
@@ -0,0 +1,8 @@
+#include <assert.h>
+#include "int2str.h"
+#include "stdio.h"
+
+char* int2str(int number) {
+    char* str = "0";
+    return str;
+}
diff --git a/tasks/task_basic_c/task_int2str/int2str.h b/tasks/task_basic_c/task_int2str/int2str.h
new file mode 100644
index 0000000..cd00dea
--- /dev/null
+++ b/tasks/task_basic_c/task_int2str/int2str.h
@@ -0,0 +1,15 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+char* int2str(int number);
+
+#ifdef __cplusplus
+}
+#endif
+
+
+
+
diff --git a/tasks/task_basic_c/task_int2str/int2str_tests.cpp b/tasks/task_basic_c/task_int2str/int2str_tests.cpp
new file mode 100644
index 0000000..e47cdc0
--- /dev/null
+++ b/tasks/task_basic_c/task_int2str/int2str_tests.cpp
@@ -0,0 +1,22 @@
+#include <gtest/gtest.h>
+#include "int2str.h"
+
+TEST(int2str, BasicTest) {
+    EXPECT_STREQ(int2str(0), "0");
+}
+
+TEST(int2str, BasicTestZero) {
+    EXPECT_STREQ(int2str(0), "0");
+}
+
+TEST(int2str, BasicTestZeroNext) {
+    EXPECT_STREQ(int2str(-0), "0");
+}
+
+TEST(int2str, BasicTestNumbers) {
+    EXPECT_STREQ(int2str(-5), "-5");
+    EXPECT_STREQ(int2str(-66), "-66");
+    EXPECT_STREQ(int2str(-123), "-123");
+    EXPECT_STREQ(int2str(2147483647), "2147483647");
+    EXPECT_STREQ(int2str(-2147483648), "-2147483648");
+}
diff --git a/tasks/task_basic_c/task_str2int/str2int.c b/tasks/task_basic_c/task_str2int/str2int.c
index 83e564e..b03c18d 100644
--- a/tasks/task_basic_c/task_str2int/str2int.c
+++ b/tasks/task_basic_c/task_str2int/str2int.c
@@ -3,23 +3,5 @@
 #include "stdio.h"
 
 int str2int(const char *str) {
-    int znak = 1;
-    int result = 0;
-
-    if (*str == '-'){
-        znak = -1;
-        str++;
-    } else if (*str == '+') {
-        str++;
-    }
-
-    int count = 0;
-    while (*str != '\0') {
-        result = result * 10 + (*str - '0');
-        count += 1;
-        str++;
-        assert(znak == -1 && result == -2147483648 || znak == -1 && result >= 0 && count <= 9 || znak == 1 && result >= 0);
-    }
-    assert(count > 0);
-    return result * znak;
+    return 0;
 }
diff --git a/tasks/task_basic_c/task_str2int/str2int_tests.cpp b/tasks/task_basic_c/task_str2int/str2int_tests.cpp
index 5ec93d1..d73ce0c 100644
--- a/tasks/task_basic_c/task_str2int/str2int_tests.cpp
+++ b/tasks/task_basic_c/task_str2int/str2int_tests.cpp
@@ -1,7 +1,6 @@
 #include <gtest/gtest.h>
 #include "str2int.h"
 
-
 TEST(str2int, BasicTest) {
     EXPECT_EQ(str2int("0"), 0);
 }