fun test1(a: Int, b: Int): Int {
  return a.plus(other = b)
}

fun test1x(a: Int, b: Int): Int {
  return a.plus(other = b)
}

fun test2(a: Int, b: Int): Int {
  return a.minus(other = b)
}

fun test2x(a: Int, b: Int): Int {
  return a.minus(other = b)
}

fun test3(a: Int, b: Int): Int {
  return a.times(other = b)
}

fun test3x(a: Int, b: Int): Int {
  return a.times(other = b)
}

fun test4(a: Int, b: Int): Int {
  return a.div(other = b)
}

fun test4x(a: Int, b: Int): Int {
  return a.div(other = b)
}

fun test5(a: Int, b: Int): Int {
  return a.rem(other = b)
}

fun test5x(a: Int, b: Int): Int {
  return a.rem(other = b)
}

fun test6(a: Int, b: Int): IntRange {
  return a.rangeTo(other = b)
}