diff --git a/28_find_the_index_of_the_first_occurrence_in_a_string/main.cpp b/28_find_the_index_of_the_first_occurrence_in_a_string/main.cpp
new file mode 100644
index 0000000..9497618
--- /dev/null
+++ b/28_find_the_index_of_the_first_occurrence_in_a_string/main.cpp
@@ -0,0 +1,9 @@
+#include <bits/stdc++.h>
+using namespace std;
+
+class Solution {
+   public:
+    int strStr(string haystack, string needle) {
+        return haystack.find(needle.c_str());
+    }
+};