diff --git a/deployment.py b/deployment.py
index 3bf0670..a47ff1f 100644
--- a/deployment.py
+++ b/deployment.py
@@ -1,10 +1,14 @@
 import os
 
 def run():
-    input_iterations = int(os.environ['INPUT_ITERATIONS'])
+    try:
+        input_iterations = os.environ['INPUT_ITERATIONS']
+    except ValueError:
+        print(f"Invalid number: {os.environ['INPUT_ITERATIONS']}")
+        return 1
 
     current_number = 1
-    last_number = 1
+    last_number = 0
 
     for _ in range(input_iterations):
         print(current_number)