diff --git a/coc_package/add.py b/coc_package/add.py
index 1a32662..be3b95f 100644
--- a/coc_package/add.py
+++ b/coc_package/add.py
@@ -10,3 +10,16 @@ def add(a, b):
     if not isinstance(a, int) or not isinstance(b, int):
         raise AttributeError("This function only accepts integer arguments")
     return a + b
+ 
+ def subtract(a, b):
+    """
+    A function that adds subtracts integers
+
+    :param a: (int) The first integer
+    :param b: (int) The second integer
+    :return: (int) The sum of a and b
+    :raises: AttributeError, if a and b are not integers
+    """
+    if not isinstance(a, int) or not isinstance(b, int):
+        raise AttributeError("This function only accepts integer arguments")
+    return a - b