diff --git a/zeta_kotlin/10821.kt b/zeta_kotlin/10821.kt
new file mode 100644
index 0000000..e69de29
diff --git a/zeta_kotlin/completed/2557.kt b/zeta_kotlin/completed/2557.kt
new file mode 100644
index 0000000..326f5e1
--- /dev/null
+++ b/zeta_kotlin/completed/2557.kt
@@ -0,0 +1,3 @@
+fun main() {
+    print("Hello World!")
+}
\ No newline at end of file