1 files changed, 33 insertions, 0 deletions
diff --git a/challenge-323/packy-anderson/python/ch-1.py b/challenge-323/packy-anderson/python/ch-1.py
new file mode 100755
index 0000000000..5cbccba4aa
--- /dev/null
+++ b/challenge-323/packy-anderson/python/ch-1.py
@@ -0,0 +1,33 @@
+#!/usr/bin/env python
+
+def incDec(operations):
+  x = 0
+  old_x = 0
+  o = ''
+  explain = []
+  for op in operations:
+    x = x + 1 if "++" in op else x - 1
+    o =  '+'  if "++" in op else  '-'
+    explain.append(
+      'Operation "{}" => {:2d} {} 1 => {:2d}'.format(
+                  op,    old_x, o,       x
+      )
+    )
+    old_x = x
+  return x, "\n".join(explain)
+
+def solution(operations):
+  display = '"' + '", "'.join(operations) + '"'
+  print(f'Input: @operations = ({display})')
+  output, explain = incDec(operations)
+  print(f'Output: {output}\n\n{explain}')
+
+
+print('Example 1:')
+solution(["--x", "x++", "x++"])
+
+print('\nExample 2:')
+solution(["x++", "++x", "x++"])
+
+print('\nExample 3:')
+solution(["x++", "++x", "--x", "x--"])