diff --git a/4/4.15 LAB/main.py b/4/4.15 LAB/main.py
new file mode 100644
index 0000000..6bad79d
--- /dev/null
+++ b/4/4.15 LAB/main.py	
@@ -0,0 +1,15 @@
+password = input()
+
+replacements = {
+    'i' : '!',
+    'a' : '@',
+    'm' : 'M',
+    'B' : '8',
+    'o' : '.'
+}
+
+for replace, replacement in replacements.items():
+    password = password.replace(replace, replacement)
+password += 'q*s'
+
+print(password)