diff --git a/3-3/main.js b/3-3/main.js
index e69de29b..7e02bc43 100644
--- a/3-3/main.js
+++ b/3-3/main.js
@@ -0,0 +1,11 @@
+const step = process.argv[2];
+
+for(let i=1;i<=step;i++){
+  for(let j=1;j<=step-i;j++){
+    process.stdout.write(" ");
+  }
+  for(let k=1;k<=i*2-1;k++){
+    process.stdout.write("*");
+  }
+  console.log();
+}
\ No newline at end of file