import std/[math, sequtils, setutils, strformat, strmisc, strutils]

# ASSUMPTION: lottery numbers are < 128
type
    Card* = ref object
        idx*: int
        play, pot: set[int8]

proc value*(card: Card): int =
    (card.play * card.pot).len

proc points*(card: Card): int =
    result = case card.value:
        of 0: 0
        of 1: 1
        else: 2 ^ (card.value - 1)

proc `$`*(card: Card): string =
    return &"Card {card.idx+1}: {card.play}, {card.pot} => {card.value}"

proc parseNumberSet(s: string): set[int8] =
     s.strip.splitWhitespace().mapIt(it.parseInt.int8).toSet

proc parseInput*(s: string): seq[Card] =
    let lines = s.strip.splitLines
    for i, line in lines:
        let card = new Card
        let (left, _, right) = line.split(":")[1].partition("|")
        card.idx = i
        card.play = parseNumberSet(left)
        card.pot = parseNumberSet(right)
        result.add(card)