Solved for issue python-geeks#98

Author: nghiab1706989

394/README.md

@@ -0,0 +1,4 @@
+# Hi, SpasZahariev! Here is my help . My code is on Python3 scenario
+# Use Regex==regular expression is a sequence of characters that specifies a search pattern.
+
+

394/leetcode394-DecodeString.py

@@ -0,0 +1,12 @@
+class Solution:
+    def decodeString(self, s: str) -> str:
+        import re
+        patt = "(\d+)\[([a-z]+)\]"
+
+        found = re.findall(patt, s)
+        while found:
+            for rep, cnt in found:
+                s = s.replace(f'{rep}[{cnt}]', cnt * int(rep))
+            found = re.findall(patt, s)
+
+        return s