#include <bits/stdc++.h>
using namespace std;
 
#define REP(i,m,n) for(int i=(m); i<(int)(n); i++)
#define RREP(i,m,n) for(int i=(int)(n-1); i>=m; i--)
#define rep(i,n) REP(i,0,n)
#define rrep(i,n) RREP(i,0,n)
#define all(a) (a).begin(),(a).end()
#define rall(a) (a).rbegin(),(a).rend()
#define aut(r,v) __typeof(v) r = (v)
#define each(it,o) for(aut(it,(o).begin()); it!=(o).end(); ++it)
#define reach(it,o) for(aut(it,(o).rbegin()); it!=(o).rend(); ++it)
#define fi first
#define se second
#define debug(...) {cerr<<"[L"<<__LINE__<<"] "; _debug(__VA_ARGS__);}
 
template<typename T1, typename T2> ostream& operator<<(ostream& o, const pair<T1, T2>& p)
{return o<<"("<<p.first<<", "<<p.second<<")";}
template<typename T>string join(const vector<T>&v, string del=", ")
{stringstream s;rep(i,v.size())s<<del<<v[i];return s.str().substr(del.size());}
template<typename T>ostream& operator<<(ostream& o, const vector<T>&v)
{if(v.size())o<<"["<<join(v)<<"]";return o;}
template<typename T>ostream& operator<<(ostream& o, const vector<vector<T> >&vv)
{int l=vv.size();if(l){o<<endl;rep(i,l){o<<(i==0?"[ ":",\n  ")<<vv[i]<<(i==l-1?" ]":"");}}return o;}
template<typename T>ostream& operator<<(ostream& o, const set<T>& st)
{vector<T> v(st.begin(),st.end());o<<"{ "<<join(v)<<" }";return o;}
template<typename T1, typename T2>ostream& operator<<(ostream& o, const map<T1, T2>& m)
{each(p,m){o<<(p==m.begin()?"{ ":",\n  ")<<*p<<(p==--m.end()?" }":"");}return o;}
inline void _debug(){cerr<<endl;}
template<class First, class... Rest>
void _debug(const First& first, const Rest&... rest){cerr<<first<<" ";_debug(rest...);}
 
typedef long long ll;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<ll> vl;
typedef vector<vl> vvl;
 
const double PI = (1*acos(0.0));
const double EPS = 1e-9;
const ll INF = 0x3f3f3f3f;
const ll INFL = 0x3f3f3f3f3f3f3f3fLL;
const ll mod = 1e9 + 7;
 
inline void finput(string filename) {
    freopen(filename.c_str(), "r", stdin);
}
 
ll mod_pow(ll x, ll n){
    ll v = 1;
    for(; n; x=x*x, n>>=1)
        if(n & 1) v = v * x % mod;
    return (x * n) % mod;
}
ll mod_inv(ll x){
    return mod_pow(x, mod-2);
}
 
struct mint {
    long long x;
    mint(long long x=0) : x((x%mod+mod)%mod) {}
    mint operator-() const {
      return mint(-x);
    }
    mint& operator+=(const mint& a) {
        if ((x += a.x) >= mod) x -= mod;
        return *this;
    }
    mint& operator-=(const mint& a) {
        if ((x += mod-a.x) >= mod) x -= mod;
        return *this;
    }
    mint& operator*=(const  mint& a) {
        (x *= a.x) %= mod;
        return *this;
    }
    mint operator+(const mint& a) const {
        mint res(*this);
        return res+=a;
    }
    mint operator-(const mint& a) const {
        mint res(*this);
        return res-=a;
    }
    mint operator*(const mint& a) const {
        mint res(*this);
        return res*=a;
    }
    mint pow(ll t) const {
        if (!t) return 1;
        mint a = pow(t>>1);
        a *= a;
        if (t&1) a *= *this;
        return a;
    }
    mint inv() const {
        return pow(mod-2);
    }
    mint& operator/=(const mint& a) {
        return (*this) *= a.inv();
    }
    mint operator/(const mint& a) const {
        mint res(*this);
        return res/=a;
    }
    friend ostream& operator<<(ostream& os, const mint& m){
        os << m.x; return os;
    }
};
 
struct Factorial{
    vector<mint> fact;
    vector<mint> factinv;
    Factorial(ll n){
        fact = vector<mint>(n+1);
        factinv = vector<mint>(n+1);
        fact[0] = 1;
        REP(i,1,n+1) fact[i] = fact[i-1] * i;
        factinv[n] = fact[n].inv();
        RREP(i,1,n+1) factinv[i-1] = factinv[i] * i;
    }
    mint C(ll n, ll k){
        if(k<0 || k>n) return 0;
        return fact[n] * factinv[n-k] * factinv[k];
    }
    mint P(ll n, ll k){
        if(k<0 || k>n) return 0;
        return fact[n] * factinv[n-k];
    }
    mint H(ll n, ll k){
        if(n==0 && k==0) return 1;
        return C(n+k-1, k);
    }
};
 
int main(){
    ios_base::sync_with_stdio(0);
    // finput("./input");
 
    ll r1,r2,c1,c2;
    cin >> r1 >> c1 >> r2 >> c2;
    auto fa = Factorial(r2+c2+1);
 
    auto f = [&](ll r, ll c){
        mint res = 0;
        REP(i,1,c+2) res += fa.C(r+i, i);
        return res;
    };
    mint ans = f(r2, c2) - f(r1-1, c2) - f(r2, c1-1) + f(r1-1, c1-1);
    cout << ans << endl;
    return 0;
}

Measured memory_bytes: 34264