using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;

class Program
{
    static int NN => int.Parse(ReadLine());
    static long[] NList => ReadLine().Split().Select(long.Parse).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var c = NList;
        var (a, b) = (c[0], c[1]);
        var mod = 1_000_000_007;
        WriteLine(((a / 2 * 2 + 1) % mod * ((b / 2 * 2 + 1) % mod) % mod + (a + 1) / 2 * 2 % mod * ((b + 1) / 2 * 2 % mod) % mod) % mod);
    }
}