using System;

public class Hello
{
    public const int MOD = 1000000007;
    public static void Main()
    {
        string[] line = Console.ReadLine().Trim().Split(' ');
        var a = long.Parse(line[0]) % MOD;
        var b = long.Parse(line[1]) % MOD;
        Console.WriteLine((a * b) % MOD);
    }
}