#include <bits/stdc++.h>
#define FL(i, a, b) for (int i = (a); i <= (b); ++i)
#define FR(i, a, b) for (int i = (a); i >= (b); --i)
using namespace std;
typedef long long ll;
constexpr ll N = 1e3 + 10;
ll n, m, ans;
int a[4][4] = {
    {6, 3, 1, 4},
    {2, 2, 2, 2},
    {1, 4, 6, 3},
    {5, 5, 5, 5}
};
int main() {
    cin >> n >> m;
    cout << n * m * 6;
    return 0;
}