main() {
	total := 0

	for 0..10 {
		total += 1
	}

	assert total == 10

	for 0..total {
		total -= 1
	}

	assert total == 0

	for i := 0..10 {
		assert i >= 0
		assert i < 10
	}

	ten := 10

	for 0..ten {
		total += 1
	}

	assert total == ten
}