using System;

namespace yukicoder
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] s = Console.ReadLine().Split(' ');
            long ans = 0;
            long a = long.Parse(s[0]);
            long b = long.Parse(s[1]);

            ans = a * b;
            ans %= 1000000007;
            Console.WriteLine(ans);
        }
    }
}