fun fibonacci(){
	var a = 0;
	var b = 1;
	fun f(){
		var next = a;
		a = b;
		b = next + b;
		return next;
	}
	return f;
}

var nextFibonacci = fibonacci();

for(var i = 0; i < 10; i = i + 1)
	print nextFibonacci();