using System;
using System.Collections.Generic;
using System.Linq;

class Program
{
    public void Solve()
    {
        decimal[] AB = Console.ReadLine().Split(' ').Select(x=>decimal.Parse(x)).ToArray();
        Console.WriteLine(AB[0] * AB[1] % 1000000007);
    }

    static void Main()
    {
        var solver = new Program();
        solver.Solve();
    }
}