import scala.annotation.tailrec
import scala.collection.parallel.ParSeq


trait LongHand {
  
  def longhand(numeral: BigInt,
               showAnd: Boolean = false,
               zeroString: String = "zero",
               showHyphen: Boolean = true): String = {

    val condAndString = if (showAnd) "and " else ""
    val condHyphenString = if (showHyphen) "-" else " "