#include<stdio.h>
int main()
{
char *s = "Hello world";
printf(s);


return 0;
}

#include<stdio.h>
int main()
{
char *s = "Hello world";
printf(s);

int x = 10;
return 0;
}

#include <iostream>

int main()
{
  std::cout << "Hello world!\n";
}

#include <iostream>
using namespace std;

int main()
{
  cout << "Hello World!" << endl;
  return 0;
}

// Hello World in D

import std.stdio;

void main()
{
   writefln("Hello World!");
}

	import std.stdio;
	 
	int main(char[][] args)
	{
	    writef("Hello world!");
	    return 0;
	}

module Main where
 
main :: IO ()
main = putStrLn "Hello World!"

module Main where
 
main :: IO ()
main = putStrLn "Hello World!"

print "Hello World!\n";

print "Hello world"

print_string "Hello World!\n";;

print_endline "Hello World";;

<?php
echo "Hello world!";
?>

<?php
  echo "hello world";
?>

  #!/usr/bin/perl
    print "Hello, world!\n";

print 'hello, world';

print("hello world");

print("hello world")

puts "Hello World"

def helloworld
  puts 'Hello world'
end

helloworld

(display "Hello, World!")

(display "Hello, World!")

puts -nonewline "Hello, world!"

puts -nonewline "Hello, world!"