diff --git a/infrastructure/backend/.env.template b/infrastructure/backend/.env.template
index 8866be3..40ead7f 100644
--- a/infrastructure/backend/.env.template
+++ b/infrastructure/backend/.env.template
@@ -12,7 +12,7 @@ DJANGO_DB_URI=postgresql://postgres:postgres@postgres/postgres
 DJANGO_CREATE_SUPERUSER=True
 DJANGO_SUPERUSER_USERNAME=admin
 DJANGO_SUPERUSER_EMAIL=admin@mail.com
-DJANGO_SUPERUSER_PASSWORD=admin
+DJANGO_SUPERUSER_PASSWORD=prooooooood
 
 MINIO_ENDPOINT=minio:9000
 MINIO_CUSTOM_ENDPOINT_URL=https://prod-team-15-minio-2pc0i3lc.final.prodcontest.ru
diff --git a/services/backend/api/v1/competition/schemas.py b/services/backend/api/v1/competition/schemas.py
index 0539b5b..079baab 100644
--- a/services/backend/api/v1/competition/schemas.py
+++ b/services/backend/api/v1/competition/schemas.py
@@ -8,8 +8,6 @@ from apps.competition.models import Competition, State
 
 class CompetitionOut(ModelSchema):
     id: UUID
-    type: Literal["edu", "competitive"]
-    participation_type: Literal["solo"]
 
     class Meta:
         model = Competition
diff --git a/services/backend/apps/task/tasks.py b/services/backend/apps/task/tasks.py
index 9899246..2ac935e 100644
--- a/services/backend/apps/task/tasks.py
+++ b/services/backend/apps/task/tasks.py
@@ -19,6 +19,7 @@ ALLOWED_MODULES = {
     "csv",
     "math",
     "statistics",
+    "statsmodels",
 }
 
 
@@ -63,18 +64,28 @@ def validate_code(code_str):
         raise SecurityException(f"Security check failed: {e!s}")
 
 
-def secure_exec(code_str, result_path):
+def secure_exec(code_str, result_path, input_files=None):
     original_dir = os.getcwd()
     original_stdout = sys.stdout
     sys.stdout = captured_stdout = StringIO()
     result_content = None
 
+    if input_files is None:
+        input_files = []
+
     with tempfile.TemporaryDirectory() as temp_dir:
         try:
             os.chdir(temp_dir)
+
+            for file in input_files:
+                file_path = os.path.join(temp_dir, file["bind_at"])
+                os.makedirs(os.path.dirname(file_path), exist_ok=True)
+                with open(file_path, "wb") as f:
+                    f.write(file["content"])
+
             restricted_globals = {
                 "__builtins__": {
-                    "open": lambda f, *a, **kw: open(f, *a, **kw),
+                    "open": open,
                     "print": print,
                     "str": str,
                     "int": int,
@@ -105,11 +116,13 @@ def secure_exec(code_str, result_path):
 
 
 @app.task(bind=True)
-def analyze_data_task(self, code_str, result_path, expected_bytes):
+def analyze_data_task(
+    self, code_str, result_path, expected_bytes, input_files=[]
+):
     try:
         validate_code(code_str)
 
-        result_content = secure_exec(code_str, result_path)
+        result_content = secure_exec(code_str, result_path, input_files)
 
         result_hash = hashlib.sha256(result_content).hexdigest()
         expected_hash = hashlib.sha256(expected_bytes).hexdigest()