#include <cstdio>
#include <cmath>
#include <algorithm>
#include <vector>
#include <stack>
#include <queue>
#include <functional>
#include <cstring>
#include <string>
#include <map>
#include <set>
#include <iostream>
#define ENP printf("**Entry Point**\n")
#define A first
#define B second
#define MP make_pair
using namespace std;
typedef long long ll;
typedef vector <double> vec_d;
typedef vector <vec_d> vvec_d;
typedef vector <int> vec_i;
typedef vector <vec_i> vvec_i;
typedef pair <int, int> pair_i;
typedef pair < pair_i, pair_i > pp_i;
const int INF = 0x60000000;
const int MINF = -1000000000;
const ll mod = 1000000007;
const int cons = 50000001;
int main()
{
ll h, w;
scanf("%lld%lld", &h, &w);
h %= mod;
w %= mod;
printf("%lld\n", ((h + 2)*(w + 2)) % mod);
return 0;
}
