import java.io.File

fun main(args: Array<String>) {
    // val file = File("../puzzle_13.txt")
    val file = File("test.txt")
    val lines = file.readLines()
    val list = lines.map {
        val pieces = it.split(": ")
        val index = pieces[0].toInt()
        val depth = pieces[1].toInt()
        val period = (depth - 1) * 2
        val congruentTo = (-(index % period) + period) % period
        period to congruentTo
    }.sortedByDescending { it.first }.toMutableList()
}