diff --git a/csip-fork b/csip-fork
new file mode 100644
index 0000000..4938c28
--- /dev/null
+++ b/csip-fork
@@ -0,0 +1 @@
+william sirotkin
diff --git a/reverse-string-william-sirotkin b/reverse-string-william-sirotkin
new file mode 100644
index 0000000..c9b236e
--- /dev/null
+++ b/reverse-string-william-sirotkin
@@ -0,0 +1,12 @@
+class Solution {
+    public void reverseString(char[] s) {
+        char placeHolder = 'a';
+        int swapsLeft = s.length / 2;
+        
+        for (int i = 0; i < swapsLeft; i++) {
+            placeHolder = s[i];
+            s[i] = s[s.length - i - 1];
+            s[s.length - i - 1] = placeHolder;
+        } // for  
+    }
+}