using System;
using System.Linq;
using System.Text;

class MultiplyBigNumber
{
    static void Main()
    {
        char[] firstNumber = Console.ReadLine().TrimStart(new char[] { '0' }).ToArray();
        int second = int.Parse(Console.ReadLine());

        StringBuilder output = new StringBuilder();

        int first = 0;
        int toadd = 0;
        int result = 0;
        for (int i = 0; i < firstNumber.Length; i++)
        {
            first = int.Parse(Convert.ToString(firstNumber[firstNumber.Length - (i + 1)]));
            result = ((first*second) + toadd) % 10;
            if ((first*second + toadd) >= 10)
            {
                toadd = (first*second+toadd)/10;
            }
            else
            {
                toadd = 0;
            }
            output.Append(Convert.ToString(result));
        }

        if (toadd > 0)
        {
            output.Append(Convert.ToString(toadd));
        }
        char[] newOutput = output.ToString().ToCharArray();
        Array.Reverse(newOutput);
        Console.WriteLine(string.Concat(newOutput));
    }
}