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

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

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

#include <iostream>
using namespace std;
 
int main() {
	// your code goes here
 
	std::cout << "hello world" ;
 
	return 0;
}

main = putStrLn "Hello, World!"


fac n
  | n <= 1    = 1
  | otherwise = fac (n-1) * n

main = putStrLn "Hello, World!"

print ("Hello World")

print("hello world")

<?php
$test = "Hello World!";
echo $test;
?>

<?php
$test = "Hello World!";
$test2 = 2;
$test2 = $test2 + 3;
?>
<?php echo $test ?>

#!/usr/bin/perl

print "Hello, World\n";

#!/usr/bin/perl

print "Hello, World\n";

__END__

=head1 Hello, World Example
This example demonstrate very basic syntax of Perl.
print "Hello, Universe\n"

print("hello world")

a=1
b=5
print 'hello world'

puts "hello world!"

puts 'hello world'

(display "Hello, World")

(display "Hello, World!")
(+ 1 2)
(+ 534 689)
(* 4 6)