# include <bits/stdc++.h>
# define ll long long

using namespace std;

ll a, b, __, _, ___, ____;
const ll mod = 1e9 + 7;

int main() {
# ifndef ONLINE_JUDGE
  freopen("in.txt", "r", stdin);
# endif
  ios::sync_with_stdio(0);
  cin.tie(0); cout.tie(0);
  while (cin >> a >> b >> __ >> ___ >> _ >> ____) {
    ll cs, s = ((___ - __) * (____ - _) % mod * a % mod * b % mod + (a * (a + 1) / 2 % mod) * (b * (b + 1) / 2 % mod) % mod) % mod;
    if (a <= __ || b <= _) {
      cs = 0;
    } else {
      ___ = min(___, a), ____ = min(____, b);
      cs = (((___ - __) * (___ - __ - 1) / 2 % mod) * ((____ - _) * (____ - _ - 1) / 2 % mod) % mod + (___ - __) * (___ - __ - 1) / 2 % mod * (____ - _) % mod * (b - ____ + 1) % mod + (____ - _) * (____ - _ - 1) / 2 % mod * (___ - __) % mod * (a - ___ + 1) % mod + (___ - __) * (____ - _) % mod * (a - ___ + 1) % mod * (b - ____ + 1) % mod) % mod;
      /*
      ((___ - __) * (___ - __ - 1) / 2 % mod) * ((____ - _) * (____ - _ - 1) / 2 % mod) % mod
      (___ - __) * (___ - __ - 1) % mod * (____ - _) % mod * (b - ____ + 1) % mod
      (____ - _) * (____ - _ - 1) % mod * (___ - __) % mod * (a - ___ + 1) % mod
      (___ - __) * (____ - _) % mod * (a - ___ + 1) % mod * (b - ____ + 1) % mod
      */
    }
    cout << (s + mod - cs) % mod << '\n';
  }
}