fun main() {
val str = "kotlin c java c++ python c# rust"
val halfstr = str.substring(0, (str.length / 2) + 1)
val center = halfstr.lastIndexOf(' ') + 1
val parts = arrayOf(str.substring(0, center), str.substring(center))
println(parts[0])
println(parts[1])
}
/*
run:
kotlin c java
c++ python c# rust
*/