diff --git a/tries/README.md b/tries/README.md
index a922179..dbeeec7 100644
--- a/tries/README.md
+++ b/tries/README.md
@@ -18,6 +18,37 @@
+```python
+class Trie:
+
+ def __init__(self):
+ self.root = {}
+
+ def insert(self, word: str) -> None:
+ node = self.root
+ for c in word:
+ if c not in node:
+ node[c] = {}
+ node = node[c]
+ node['$'] = None
+
+ def match(self, seq, prefix=False):
+ node = self.root
+ for c in seq:
+ if c not in node:
+ return False
+ node = node[c]
+ return prefix or ('$' in node)
+
+ def search(self, word: str) -> bool:
+ return self.match(word)
+
+ def startsWith(self, prefix: str) -> bool:
+ return self.match(prefix, True)
+```
+
+
+
----
### insertion