import kotlin.IllegalArgumentException

fun main() {

    fun part2(input: List<String>): Int {
        return input.sumOf { when(it) {
            "A X" -> 3
            "A Y" -> 4
            "A Z" -> 8
            "B X" -> 1
            "B Y" -> 5
            "B Z" -> 9
            "C X" -> 2
            "C Y" -> 6
            "C Z" -> 7
            else -> throw IllegalArgumentException()
        }.toInt()
        }
    }

    fun part1(input: List<String>): Int {
        return input.sumOf { when(it) {
            "A X" -> 4
            "A Y" -> 8
            "A Z" -> 3
            "B X" -> 1
            "B Y" -> 5
            "B Z" -> 9
            "C X" -> 7
            "C Y" -> 2
            "C Z" -> 6
            else -> throw IllegalArgumentException()
        }.toInt()
        }
    }

    // test if implementation meets criteria from the description, like:
    val testInput = readInput("Day02_test")
    check(part1(testInput) == 15)
    check(part2(testInput) == 12)

    val input = readInput("Day02")
    println(part1(input))
    println(part2(input))
}

import kotlin.IllegalArgumentException

fun main() {

    fun part2(input: List<String>): Int {
        return input.sumOf { when(it) {
            "A X" -> 3
            "A Y" -> 4
            "A Z" -> 8
            "B X" -> 1
            "B Y" -> 5
            "B Z" -> 9
            "C X" -> 2
            "C Y" -> 6
            "C Z" -> 7
            else -> throw IllegalArgumentException()
        }.toInt()
        }
    }

    fun part1(input: List<String>): Int {
        return input.sumOf { when(it) {
            "A X" -> 4
            "A Y" -> 8
            "A Z" -> 3
            "B X" -> 1
            "B Y" -> 5
            "B Z" -> 9
            "C X" -> 7
            "C Y" -> 2
            "C Z" -> 6
            else -> throw IllegalArgumentException()
        }.toInt()
        }
    }

    // test if implementation meets criteria from the description, like:
    val testInput = readInput("Day02_test")
    check(part1(testInput) == 15)
    check(part2(testInput) == 12)

    val input = readInput("Day02")
    println(part1(input))
    println(part2(input))
}
