diff --git a/projects/019-the-collatz-conjecture/python/main.py b/projects/019-the-collatz-conjecture/python/main.py
index e69de29..2b9d8e0 100644
--- a/projects/019-the-collatz-conjecture/python/main.py
+++ b/projects/019-the-collatz-conjecture/python/main.py
@@ -0,0 +1,18 @@
+sequence = 1
+
+while sequence > 0:
+    sequence = int(input('insert an integer: '))
+
+    while sequence > 1:
+        is_even = sequence % 2
+        
+        if is_even == 0:
+            sequence = sequence // 2
+            print(sequence)
+    
+        else:
+            sequence = sequence * 3 + 1
+            print(sequence)
+
+
+