diff --git a/.gitignore b/.gitignore
index 9daa8247..42ffb40b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 .DS_Store
+
 node_modules
diff --git a/Challenge/dbtjsghk21/solve.js b/Challenge/dbtjsghk21/solve.js
new file mode 100644
index 00000000..954444a4
--- /dev/null
+++ b/Challenge/dbtjsghk21/solve.js
@@ -0,0 +1,12 @@
+// write your codes
+function solution(inputArray) {
+  const answer = [];
+  inputArray.forEach((item, index) => {
+    answer.push(item + "%");
+  });
+  return answer;
+}
+const answ = solution([100, 10, 20, 40]);
+console.log(answ);
+
+exports.solution = solution;