if let input = readLine(),
   let numbers = {
        let tempNumbers = input.split(separator: " ").compactMap({Int($0)})
        return tempNumbers.isEmpty ? nil : tempNumbers
   }() {

    var min = numbers[0]
    var max = numbers[0]
    
    for num in numbers {
        min = min > num ? num : min
        max = max < num ? num : max
    }

    print("\n최소값 : \(min)\n최대값 : \(max)\n")

} else {
    print("error")
}