diff --git a/task-1/output/clean_users.json b/task-1/output/clean_users.json
new file mode 100644
index 0000000..38a6b87
--- /dev/null
+++ b/task-1/output/clean_users.json
@@ -0,0 +1,86 @@
+[
+  {
+    "id": 1,
+    "name": "Alice Johnson",
+    "email": "alice.johnson@company.com",
+    "department": "Engineering",
+    "salary": 85000
+  },
+  {
+    "id": 2,
+    "name": "Bob Smith",
+    "email": "bob.smith@company.com",
+    "department": "Unknown",
+    "salary": 72000
+  },
+  {
+    "id": 3,
+    "name": "Carol Williams",
+    "email": "carol.williams@company.com",
+    "department": "Engineering",
+    "salary": null
+  },
+  {
+    "id": 4,
+    "name": "David, Jr.",
+    "email": "david.brown@company.com",
+    "department": "Sales",
+    "salary": 68000
+  },
+  {
+    "id": 5,
+    "name": "Caf\u00e9 Owner",
+    "email": "eva@company.com",
+    "department": "Engineering",
+    "salary": 88000
+  },
+  {
+    "id": 6,
+    "name": "FRANK WILSON",
+    "email": "frank@company.com",
+    "department": "marketing",
+    "salary": 95000
+  },
+  {
+    "id": 7,
+    "name": "Grace Lee",
+    "email": "grace.lee@company.com",
+    "department": "Engineering",
+    "salary": null
+  },
+  {
+    "id": 9,
+    "name": "Henry Davis",
+    "email": "henry.davis@company.com",
+    "department": "Sales",
+    "salary": 82000
+  },
+  {
+    "id": 11,
+    "name": "Linda Taylor",
+    "email": "linda.t@company.com",
+    "department": "HR",
+    "salary": 55000
+  },
+  {
+    "id": 12,
+    "name": "Mike Brown",
+    "email": "mike.b@company.com",
+    "department": "Sales",
+    "salary": null
+  },
+  {
+    "id": 13,
+    "name": "Sarah Connor",
+    "email": "s.connor@sky.net",
+    "department": "Unknown",
+    "salary": -1
+  },
+  {
+    "id": 15,
+    "name": "John Doe",
+    "email": "john.doe@company.net",
+    "department": "Engineering",
+    "salary": 100000
+  }
+]
\ No newline at end of file
diff --git a/task-1/src/utils.py b/task-1/src/utils.py
index 2762398..a3312cd 100644
--- a/task-1/src/utils.py
+++ b/task-1/src/utils.py
@@ -13,7 +13,7 @@ def clean_name(raw: str) -> str:
 
     Returns the cleaned string. An empty input returns "".
     """
-    raise NotImplementedError("Implement clean_name (Task 1)")
+    return raw.strip()
 
 
 def clean_email(raw: str) -> str:
@@ -21,7 +21,7 @@ def clean_email(raw: str) -> str:
 
     Returns the cleaned string. An empty input returns "".
     """
-    raise NotImplementedError("Implement clean_email (Task 1)")
+    return raw.strip().lower()
 
 
 def clean_department(raw: str) -> str:
@@ -29,8 +29,12 @@ def clean_department(raw: str) -> str:
 
     Strip whitespace; treat empty string as missing.
     """
-    raise NotImplementedError("Implement clean_department (Task 1)")
-
+    normilized = raw.strip()
+    
+    if not normilized:
+     return "Unknown"
+    
+    return normilized
 
 def clean_salary(raw: str) -> int | None:
     """Parse a messy salary cell into an int.
@@ -38,4 +42,15 @@ def clean_salary(raw: str) -> int | None:
     Handles inputs like "85000", "  95000", '"68,000"', "N/A", "".
     Returns None when the value cannot be parsed (missing or "N/A").
     """
-    raise NotImplementedError("Implement clean_salary (Task 1)")
+    normilized = raw.strip()
+    
+    if not normilized or normilized == "N/A":
+        return None
+    
+    normilized = normilized.replace('"', "")
+    normilized = normilized.replace(",", "")
+    
+    try:
+        return int(normilized)
+    except ValueError:
+        return None
\ No newline at end of file
diff --git a/task-3/azure_proof.jpg b/task-3/azure_proof.jpg
new file mode 100644
index 0000000..57b9ffd
Binary files /dev/null and b/task-3/azure_proof.jpg differ