#include #include #include #include #include #include #include #include #include #include #include #include using namespace std; // 型名の短縮 using ll = long long; using pii = pair; using pll = pair; using vi = vector; using vvi = vector; using vl = vector; using vvl = vector; template using priority_queue_rev = priority_queue, greater>; template bool chmax(T &m, const T q) { if (m < q) {m = q; return true;} else return false; } template bool chmin(T &m, const T q) { if (m > q) {m = q; return true;} else return false; } #define all(a) a.begin(),a.end() #define rep(i, n) for(int i = 0, i##_end = int(n); i < i##_end; ++i) // 0 から n-1 まで昇順 #define repi(i, s, t) for(int i = int(s), i##_end = int(t); i <= i##_end; ++i) // s から t まで昇順 #define repir(i, s, t) for(int i = int(s), i##_end = int(t); i >= i##_end; --i) // s から t まで降順 #define repe(v, a) for(const auto& v : (a)) // a の全要素(変更不可能) #define repea(v, a) for(auto& v : (a)) // a の全要素(変更可能) #define repb(set, d) for(int set = 0; set < (1 << int(d)); ++set) // d ビット全探索(昇順) #define repp(a) sort(all(a)); for(bool a##_perm = true; a##_perm; a##_perm = next_permutation(all(a))) // a の順列全て(昇順) #define smod(n, m) ((((n) % (m)) + (m)) % (m)) // 非負mod #define uniq(a) {sort(all(a)); (a).erase(unique(all(a)), (a).end());} // 重複除去 // template inline T smod(T n, T m) { n %= m; if (n < 0) n += m; return n; } // 非負mod long long TEN(int x) { return x == 0 ? 1 : TEN(x - 1) * 10; }; //ll mod = 998244353; ll mod = 1000000007; //#include "dsu.hpp" //#include "segtree.hpp" //#include //using namespace atcoder; int main(){ ll a,b; cin >> a >> b; ll a1 = (a+(a%2==0))%mod; ll a2 = (a+(a%2==1))%mod; ll b1 = (b+(b%2==0))%mod; ll b2 = (b+(b%2==1))%mod; ll ans = (a1*b1+a2*b2)%mod; cout << ans << endl; }