using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace test_2
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] n = Console.ReadLine().Split();
            ulong x = ulong.Parse(n[0]);
            ulong x2 = ulong.Parse(n[1]);

            ulong ans = (x * x2) % 1000000007;

            Console.WriteLine(ans);
        }
    }
}