#include <bits/stdc++.h>
using namespace std;
int main()
 {
    int H,W;
    cin >> H >> W;

    int x = min(H, W);
    long long ps= 0;

    for (int i=1; i<=x; ++i) {
        ps+= (H-i+1)*(W-i+1);
    }
    cout <<ps<< endl;

}