#include <fstream>
using namespace std;

ifstream f("dreptunghiuri.in");
ofstream g("dreptunghiuri.out");

int N,M;
long long answer;

int main()
{
    f >> N >> M;

    //dreptunghiuri paralele cu axele
    for (int i = 1; i < N; ++i)
    {
        for (int j = 1; j < M; ++j)
        {
            answer += (N-i)*(M-j);
        }
    }

    //dreptunghiuri neparalele cu axele
    for (int i = 1; i < N; ++i)
    {
        for (int j = 1; j < M; ++j)
        {
            if (i+j < N && i+j < M)
            {
                answer += (N-i-j)*(M-i-j);
            }
        }
    }

    g << answer;

    f.close();
    f.close();

    return 0;
}