using System;

namespace Kyogi1
{
    class Program
    {
        static void Main(string[] args)
        {
            long A;
            long B;
            long product;
            string str = Console.ReadLine();
            bool resultA = long.TryParse(str.Split(" ")[0], out A);
            bool resultB = long.TryParse(str.Split(" ")[1], out B);
            if (resultA && resultB) {
                product = ( A * B ) % 1000000007;
                Console.WriteLine(product);
            }
            else {
                Console.WriteLine("long型の数字入れてや");
            }
        }
    }
}