diff --git a/coding_solutions/interview_related/AddTwoNum.py b/coding_solutions/interview_related/AddTwoNum.py
index 8034215..566cdde 100644
--- a/coding_solutions/interview_related/AddTwoNum.py
+++ b/coding_solutions/interview_related/AddTwoNum.py
@@ -1 +1,8 @@
-'Solution to be add here'
\ No newline at end of file
+def add(x,y):
+  if x and y is not digit:
+    return None
+  else:
+    a,b = int(x), int(y)
+    return a + b
+    
+