for (i in 1..10)
    println(i)

var i = 0
while (i < 5) 
  println(i)
  i++

do 
    val foo = bar()
while (foo != null) 

for (i in 1..10) {
    println(i)
}

var i = 0
while (i < 5) {
  println(i)
  i++
} 

do {
    val foo = bar()
} while (foo != null)