diff --git a/2021/02/part-001.py b/2021/02/part-001.py
old mode 100644
new mode 100755
index a8f7375..37cda8a
--- a/2021/02/part-001.py
+++ b/2021/02/part-001.py
@@ -1,3 +1,25 @@
 #!/usr/bin/env python3
 
-with 
+
+# start position
+forward = 0
+depth = 0
+
+with open('input.txt', 'r') as myfile:
+    for line in myfile:
+        # read file line by line
+        command, value = line.split(' ')
+        # print('command {} value {}'.format(command, value))
+        if command == 'forward':
+            forward = forward + int(value)
+        elif command == 'down':
+            depth = depth - int(value)
+        elif command == 'up':
+            depth = depth + int(value)
+
+
+print('forward: {} depth: {}'.format(forward, depth))
+print('Submit value: {}'.format(forward * abs(depth)))       
+
+    
+