using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

public class Program

{

    public static void Main()

    {

        string firstNumber = Console.ReadLine().TrimStart(new char[] { '0' });

        byte secondNumber = byte.Parse(Console.ReadLine());

​

        if (firstNumber == "0" || secondNumber == 0 || firstNumber == "")

        {

            Console.WriteLine(0);

            return;

        }

​

        byte product = 0;

        byte numberInMind = 0;

        byte remainder = 0;

        StringBuilder result = new StringBuilder();

​

        for (int i = firstNumber.Length - 1; i >= 0 ; i--)

        {

            product = (byte)(byte.Parse(firstNumber[i].ToString()) * secondNumber + numberInMind);

            numberInMind = (byte)(product / 10);

            remainder = (byte)(product % 10);

            result.Append(remainder);

            if (i == 0 && numberInMind != 0)

            {

                result.Append(numberInMind);

            }

​

        }

​

        char[] resultToCharArr = result.ToString().ToCharArray();

        Array.Reverse(resultToCharArr);

        Console.WriteLine(new string(resultToCharArr));

    }

}