#include<bits/stdc++.h>
using namespace std;



int main(){
    int h, w;
    cin >> h >> w;
    int mn = min(h, w);
    int s = 0;
    for(int i=1;i<=mn;i++){
        s = s + (h-i+1)*(w-i+1);
    }
    cout << s << endl;

    return 0;
}