#include <fstream>

using namespace std;

const int MAXN = 400;

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

int nrN[MAXN * MAXN + 1], nrM[MAXN * MAXN + 1];

void calcul(int M[], int n)
{
    for(int A = 1; A < n; A++)
        for(int B = 1; A + B < n; B++)
            M[A * B] += n - (A + B);
}

int main()
{
    int n, m, maxp;
    f >> n >> m;
    long long nrsol = 1LL * n * (n - 1) / 2 * m * (m - 1) / 2;
    calcul(nrN, n);
    calcul(nrM, m);
    maxp = max(n, m) / 2;
    maxp *= maxp;
    for(int p = 1; p <= maxp; p++)
        nrsol += nrN[p] * nrM[p];
    g << nrsol;
    return 0;
}