diff --git a/src/arrayMethodSort.js b/src/arrayMethodSort.js
index 32363d0d..8719816f 100644
--- a/src/arrayMethodSort.js
+++ b/src/arrayMethodSort.js
@@ -4,8 +4,37 @@
  * Implement method Sort
  */
 function applyCustomSort() {
-  [].__proto__.sort2 = function(compareFunction) {
-    // write code here
+  [].__proto__.sort2 = function (compareFn) {
+    const compare =
+      compareFn ??
+      ((a, b) => {
+        const strA = String(a);
+        const strB = String(b);
+
+        if (strA < strB) {
+          return -1;
+        }
+
+        if (strA > strB) {
+          return 1;
+        }
+
+        return 0;
+      });
+
+    for (let i = 1; i < this.length; i++) {
+      const current = this[i];
+      let j = i - 1;
+
+      while (j >= 0 && compare(this[j], current) > 0) {
+        this[j + 1] = this[j];
+        j--;
+      }
+
+      this[j + 1] = current;
+    }
+
+    return this;
   };
 }