#include <stdio.h>
int main(void)
{
    printf("Hello World\n");
    return 0;
}

#include <iostream>
int main()
{
    std::cout << "Hello World" << endl;
    return 0;
}

using System;
class Program {
   static void Main(string[] args) {    
          Console.WriteLine("Hello World");
     }
}


class HelloWorldApp {
   public static void main(String[] args) {
      System.out.println("Hello World");
   }
}

print("Hello World")

<?php
     echo "Hello World";
?>

cat("Hello World")

puts 'Hello World'

document.writeln('Hello World');

HAI;
    CAN HAS STDIO?;
    VISIBLE "HAI WURLD";
KTHXBYE;