list_slicing_operator_example.kt

operator fun <T, A, B, C> T.getSlice(first: A, last: B, step: C)
operator fun <T, A, B, C, S> T.setSlice(first: A, last: B, step: C, value: S)
and we can use them:
operator fun <T> List<T>.getSlice(first: Int = 0, last: Int = size - 1, step: Int = 1)
list[first:]
list[first:last]
list[first:last:step]
list[:last]
list[:last:step]
list[first: :step]
list[: :step]