// for browsers
if (typeof alert != 'undefined') {
	print = function () {
		alert(Array.prototype.slice.call(arguments).join(' '));
	}
}
// for jshost (jslibs)
else if (typeof LoadModule != 'undefined') {
	LoadModule('jsstd');
	print = function () {
		Print(Array.prototype.join.call(arguments, ' '), '\n');
	}
}
// for DMDScript
else if (typeof ScriptEngine == 'function' && ScriptEngine() == 'DMDScript') {
	_print = print;
	print = function () {
		_print(Array.prototype.join.call(arguments, ' '), '\n');
	}
}

a = function () {

	function A(x) {
		function B() {
			return x * x;
		}
		return B;
	}

	var b1 = A(1);
	var b2 = A(2);

	print('b1() =', b1(), "\n");
	print('b2() =', b2(), "\n");
	print('b1', b1 == b2 ? '==' : '!=', 'b2', "\n");

}
a.call();