import Foundation

let array = readLine()!.componentsSeparatedByString(" ")
let numOfPeople = Int(array[0])!
let trainFee = Int(array[1])!
let taxiFee = Int(array[2])!

if trainFee * numOfPeople < taxiFee {
  print(trainFee * numOfPeople)
} else {
  print(taxiFee)
}