using System;
using System.Collections.Generic;
using System.Text;

namespace MultiplyBigNumber
{
    class Program
    {
        static void Main(string[] args)
        {
            char[] number = Console.ReadLine().ToCharArray();
            int multiplier = int.Parse(Console.ReadLine());
            List<string> numbers = new List<string>();
            for (int i = 0; i < number.Length; i++)
            {
                numbers.Add(number[i].ToString());
            }
            while (numbers[0] == "0")
            {
                numbers.RemoveAt(0);
            }
            int num1 = 0;
            int num2 = 0;

            StringBuilder sb = new StringBuilder();

            for (int i = numbers.Count - 1; i >= 0; i--)
            {
                int num = int.Parse(numbers[i]);
                num = (num * multiplier) + num2;
                num1 = num  % 10;
                num2 = num / 10;

                sb.Append(num1.ToString());
            }
            if (multiplier == 0)
            {
                Console.WriteLine("0");
            }
            else
            {
                if (num2 > 0)
                {
                    sb.Append(num2.ToString());
                }
                for (int i = sb.Length - 1; i >= 0; i--)
                {
                    Console.Write(sb[i]);
                }
            }
        }
    }
}