fn main() {
	mut i := 0
	for i = 0; i < 3; i++ {
		println('loop0')
	}
	i = 0
	for i < 3 {
		println('loop1')
		i++
	}
	for _ in 0 .. 3 {
		println('loop2')
	}
	n := 3
	for _ in 0 .. n {
		println('loop3')
	}
	for i = 3; i > 0; i-- {
		println('loop4')
	}
	i = 3
	for i > 0 {
		println('loop5')
		i--
	}
}