#include <bits/stdc++.h>
using namespace std;
#define int long long
typedef long long ll;
typedef pair<int, int> PII;
const int L = 1000000001;
//#define p first
//#define d second

void solve(){
    int n, m; cin >> n >> m;
    int ans = 0;
    int cur = 0;
    for (int i = 0; i <= n; i++) {
        for (int j = 0; j <= m;j++){
            if(i == 0 && j == 0) continue;
            int x = i * 2, y = j * 2;
            if(x > n || y  > m) continue;
            if(x == 0 || y == 0) ans += (n - x + 1) * (m - y + 1);
            else ans += (n - x + 1) * (m - y + 1) * 2ll;
        }
    }
    cout << ans;
}

signed main(){
    ios::sync_with_stdio(false);cin.tie(0);
    int _ = 1;
//    cin >> _;
    while(_--) solve();
    return 0;
}