diff --git a/e.ts b/e.ts
new file mode 100644
index 0000000..82df1fa
--- /dev/null
+++ b/e.ts
@@ -0,0 +1,17 @@
+const E = 50;
+
+type E = "e";
+type EEE<E> = E;
+
+const EEEE = Array;
+
+const e = <EE extends E>(e: EE): EEE<EE> => {
+  return e;
+};
+
+const ee = new EEEE(E).fill("e" as E);
+
+for (const eee of ee) {
+  const eeee = e(eee);
+  console.log(eeee);
+}