diff --git a/fib.py b/fib.py
index 421cfab..ca108ca 100644
--- a/fib.py
+++ b/fib.py
@@ -1,15 +1,9 @@
-
-"""
-Fibonacci number generator
-When given a position, the function returns the fibonacci at that position in the sequence.
-The zeroth number in the fibonacci sequence is 0. The first number is 1
-Negative numbers should return None
-"""
 def fibonacci(position):
-  if(position == 1 or position == 2):
-    return 1
-  return fibonacci(position - 1) + fibonacci(position - 2)
-
-
-
-
+    if position < 0:
+        return None
+    elif position == 0:
+        return 0
+    elif position == 1:
+        return 1
+    else:
+        return fibonacci(position - 1) + fibonacci(position - 2)
\ No newline at end of file
diff --git a/github-assignment-python b/github-assignment-python
new file mode 160000
index 0000000..5edddab
--- /dev/null
+++ b/github-assignment-python
@@ -0,0 +1 @@
+Subproject commit 5edddab4a2c1df062ae1e50efb3411d6bc105efb
diff --git a/hw2repo b/hw2repo
new file mode 160000
index 0000000..a9a8041
--- /dev/null
+++ b/hw2repo
@@ -0,0 +1 @@
+Subproject commit a9a80417d485367af5b8bf9b923f7c07ee3562c8