diff --git a/LeetCode/0017_Letter_Combinations_of_a_Phone_Number.py b/LeetCode/0017_Letter_Combinations_of_a_Phone_Number.py
new file mode 100644
index 0000000..e44ffe4
--- /dev/null
+++ b/LeetCode/0017_Letter_Combinations_of_a_Phone_Number.py
@@ -0,0 +1,19 @@
+import itertools
+from typing import List
+
+class Solution:
+    def letterCombinations(self, digits: str) -> List[str]:
+        keyboard = {
+            '2': "abc",
+            '3': "def",
+            '4': "ghi",
+            '5': "jkl",
+            '6': "mno",
+            '7': "pqrs",
+            '8': "tuv",
+            '9': "wxyz",
+        }
+
+        pressed = [keyboard[c] for c in digits]
+
+        return [''.join(p) for p in itertools.product(*pressed) if p != ()]
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