diff --git a/evenoroddchecker.py b/evenoroddchecker.py
index 2336deb..a033c08 100644
--- a/evenoroddchecker.py
+++ b/evenoroddchecker.py
@@ -1,10 +1,8 @@
 def check_even_odd(num):
-    if num % 2 = 0:  
-        print(f"{num} is even")
-    else
-        print(num + " is odd") 
-    return None
-
-# Test the function
-check_even_odd(7) 
-check_even_odd(-4)  
+    try:
+        if num % 2 == 0: 
+            print(f"{num} is even")
+        else:
+            print(f"{num} is odd")
+    except TypeError:
+        print("Please enter a valid integer.")
diff --git a/second-year b/second-year
new file mode 160000
index 0000000..6efead0
--- /dev/null
+++ b/second-year
@@ -0,0 +1 @@
+Subproject commit 6efead001a20957c27117a20a246582279c39bae