diff --git a/E_1021_RemoveOutermostParentheses.java b/E_1021_RemoveOutermostParentheses.java
new file mode 100644
index 0000000..e3dc308
--- /dev/null
+++ b/E_1021_RemoveOutermostParentheses.java
@@ -0,0 +1,27 @@
+class Solution {
+    public String removeOuterParentheses(String S) {
+        // 3 ms
+        int L = 0, R = 0;
+        StringBuilder sonuc = new StringBuilder();
+        StringBuilder temp= new StringBuilder();
+        for (int i = 0; i < S.length(); i++) {
+            if (S.charAt(i) == '(')
+                L++;
+            else if (S.charAt(i) == ')')
+                R++;
+            if (L == R) {
+                for(int x=i-L-R+1; x<i+1;x++){
+                    temp.append(S.charAt(x));
+                }
+                for (int j = 1; j < L+R-1; j++) {
+                    sonuc.append(temp.charAt(j));
+                }
+                L=0; R=0;
+                temp = new StringBuilder();
+
+            }
+        }
+
+        return sonuc.toString();
+    }
+}
\ No newline at end of file