#include <stdio.h>
int main()
{
printf("hello world");
return 0;
}

#include<stdio.h>
void main(){

printf("Hello world");
}

#include <stdio.h>
int main(){printf("Hello World!");}

#include <stdio.h>

int main()
{
printf("HELLO WORLD\n");
return 0;
}

main = putStrLn "Hello, world!"

main = putStrLn "Hello, world!"

print("Hello World")

print("Hello, world!")

print_endline "Hello, World!"

print_string "Hello, world"

<?php
    echo "Hello world!";

<?
echo "Hello World!"
?>

print "Hello world"

print "Hello world"

print "Hello world"

# Python code for "Hello World" 
# nothing else to type...see how simple is the syntax. 
  
print("Hello World")  

puts "hello world"

puts 'Hello, world!'

(begin
  (display "Hello, World!")
  (newline))

(display "Hello World")