n := 0
for range [1, 3, 5, 7, 11] {
	n++
}
println("n:", n)

for x := range [1] {
}

sum := 0
for _, x := range [1, 3, 5, 7, 11] {
	if x > 3 {
		sum += x
	}
}
println("sum(1,3,5,7,11):", sum)

sum = 0
for i := 1; i < 100; i++ {
	sum += i
}
println("sum(1-100):", sum)

for x <- [1] {
	println(x)
}

for i, x <- [1] if i%2 == 0 {
	println(i, x)
}