int triangle(int num);

entrypoint void test(int a, int b)
{
	int i;
	for (i = 1; i < 20; i+=1)
	{
		print(triangle(i));
		print('\n');
	}
}

int triangle(int num)
{
	if (num <= 1)
	{
		return 1;
	}
	else
	{
		return triangle(num - 1) + num;
	}
}