fun main(args: Array<String>)
{

}

// Read an integer
// Usage: val a = readInt()
fun readInt() = readLine()!!.toInt()

// Read N integers separated by " "
// Usage: val (a, b, c) = readNInts()
fun readNInts() = readLine()!!.split(" ").map(String::toInt)

// Read a string
// Usage: val a = readString()
fun readString() = readLine()!!