diff --git a/medium/process_string_with_special_operations_i.py b/medium/process_string_with_special_operations_i.py
new file mode 100644
index 0000000..6b8f5ec
--- /dev/null
+++ b/medium/process_string_with_special_operations_i.py
@@ -0,0 +1,17 @@
+# https://leetcode.com/problems/process-string-with-special-operations-i
+
+class Solution:
+    def processStr(self, s: str) -> str:
+        result = []
+        for ch in s:
+            match ch:
+                case '#':
+                    result *= 2
+                case '%':
+                    result.reverse()
+                case '*':
+                    if len(result) > 0:
+                        result.pop()
+                case _:
+                    result.append(ch)
+        return ''.join(result)
\ No newline at end of file