diff --git a/src/my_project/interviews/top_150_questions_round_23/ex_17_roman_to_integer.py b/src/my_project/interviews/top_150_questions_round_23/ex_17_roman_to_integer.py
new file mode 100644
index 00000000..34c055b1
--- /dev/null
+++ b/src/my_project/interviews/top_150_questions_round_23/ex_17_roman_to_integer.py
@@ -0,0 +1,21 @@
+from typing import List, Union, Collection, Mapping, Optional
+from abc import ABC, abstractmethod
+
+class Solution:
+    def romanToInt(self, s: str) -> int:
+
+        roman_to_dict = {'I':1,'V':5,'X':10,'L':50,'C':100,'D':500,'M':1000}
+
+        len_s = len(s)
+
+        answer = roman_to_dict[s[len_s - 1]]
+
+        for i in range(len_s - 1):
+
+            if roman_to_dict[s[len_s - 2 - i]] \
+                    < roman_to_dict[s[len_s - 1 - i]]:
+                answer -= roman_to_dict[s[len_s - 2 - i]]
+            else: 
+                answer += roman_to_dict[s[len_s - 2 - i]]
+
+        return answer
\ No newline at end of file
diff --git a/src/my_project/interviews_typescript/top_150_questions_round_23/ex_17_roman_to_integer.ts b/src/my_project/interviews_typescript/top_150_questions_round_23/ex_17_roman_to_integer.ts
new file mode 100644
index 00000000..ed971786
--- /dev/null
+++ b/src/my_project/interviews_typescript/top_150_questions_round_23/ex_17_roman_to_integer.ts
@@ -0,0 +1,19 @@
+function romanToInt(s: string): number {
+
+    let roman_to_int_obj: {[key:string]:number} = {'I':1,'V':5,'X':10,'L':50,'C':100,'D':500,'M':1000}
+
+    let lenS: number = s.length
+    let solution: number = roman_to_int_obj[s[lenS-1]]
+
+    for (let i = 0; i < lenS-1;i++){
+        if (roman_to_int_obj[s[lenS-2-i]] < roman_to_int_obj[s[lenS-1-i]]) {
+            solution -= roman_to_int_obj[s[lenS-2-i]]
+        }
+        else{
+            solution += roman_to_int_obj[s[lenS-2-i]]
+        }
+    }
+
+    return solution;
+
+};
\ No newline at end of file
diff --git a/tests/test_150_questions_round_23/test_17_roman_to_integer_round_23.py b/tests/test_150_questions_round_23/test_17_roman_to_integer_round_23.py
new file mode 100644
index 00000000..f58bddf4
--- /dev/null
+++ b/tests/test_150_questions_round_23/test_17_roman_to_integer_round_23.py
@@ -0,0 +1,17 @@
+import unittest
+from src.my_project.interviews.top_150_questions_round_23\
+.ex_17_roman_to_integer import Solution
+
+class RomanToIntegerTestCase(unittest.TestCase):
+
+    def test_patter_one(self):
+        solution = Solution()
+        output = solution.romanToInt(s='VII')
+        target = 7
+        self.assertEqual(output, target)
+
+    def test_patter_two(self):
+        solution = Solution()
+        output = solution.romanToInt(s='IX')
+        target = 9
+        self.assertEqual(output, target)
\ No newline at end of file