diff --git a/__pycache__/calculator.cpython-312.pyc b/__pycache__/calculator.cpython-312.pyc
index 09c608d..2aac3ba 100644
Binary files a/__pycache__/calculator.cpython-312.pyc and b/__pycache__/calculator.cpython-312.pyc differ
diff --git a/__pycache__/test_calculator.cpython-312-pytest-9.0.2.pyc b/__pycache__/test_calculator.cpython-312-pytest-9.0.2.pyc
new file mode 100644
index 0000000..5f31505
Binary files /dev/null and b/__pycache__/test_calculator.cpython-312-pytest-9.0.2.pyc differ
diff --git a/calculator.py b/calculator.py
index 24a2fef..bbfee0e 100644
--- a/calculator.py
+++ b/calculator.py
@@ -1,16 +1,31 @@
-def multiply(a,b):
+def multiply(a, b):
     return a * b
 
-def add(a,b):
-	return a+b
+def add(a, b):
+    return a + b
 
-def subtract(a,b):
-	return a-b
+def subtract(a, b):
+    return a - b
 
-def divide(a,b):
-	return a/b
+def divide(a, b):
+    return a / b
 
+def square(a):
+    return a * a
 
-print("I'm going use the calculator functions to multiply 5 and 6")
-x = multiply(5,6)
-print(x)
\ No newline at end of file
+def cube(a):
+    return a ** 3
+
+def square_n_times(number, n):
+    result = number
+    total = 0
+    for _ in range(n):
+        result = square(result)
+        total += result
+    return total
+
+
+if __name__ == "__main__":
+    print("I'm going use the calculator functions to multiply 5 and 6")
+    x = multiply(5, 6)
+    print(x)