10 20 10 5
 20 1 2 3
 7 2 2 2
 25 10 5 10
 999 999 899 299
 10000 5000 0 5000
 2 2 2 2
 1 0 2 0
 3 3 2 1
 1 1 0 0
 1 0 0 1
 20 10 20 30
 505 142 321 12
 101 10 10 50
 10 19 15 100
 10000 5000 5000 0
 1234 645 876 1000
 3 10 10 10
 1 0 1 0
 7 3 0 5
 101 10 0 50
 1 0 0 0
 10 0 8 10
 1 2 0 0
 5 2 1 1
 8765 2432 2789 4993
 8987 4000 2534 4534
 10000 5000 5000 5000
 10000 5000 2500 2500
 10000 0 5000 5000
 10000 4999 2500 2500
 5 5000 5000 5000
 10000 4534 2345 4231
 5643 1524 1423 2111
 7777 4444 3333 2222
 2500 5000 5000 5000
 10000 2500 2500 2500
 5000 5000 5000 5000

36
 0
 1
 12
 145000
 1251
 3
 1
 3
 0
 0
 57
 0
 33
 35
 0
 141636
 6
 1
 1
 3
 0
 5
 1
 0
 1697715
 2536267
 6253751
 1
 2501
 0
 12
 2069003
 146687
 1236544
 1565001
 0
 4691251

#include <bits/stdc++.h>
using namespace std;
bool sortbyfirstandsec(const pair<int, int> &a, const pair<int, int> &b) {
  if (a.first == b.first) return (a.second > b.second);
  return a.first < b.first;
}
long long fact(long long int a, long long int b) {
  if (b == 0)
    return a;
  else
    return fact(b, a % b);
}
int main() {
  long long int n, m, i, j, k, l, w = 0, a, b, c, y, p;
  cin >> n >> a >> b >> c;
  a = a / 2;
  for (i = 0; i <= c; i++) {
    if (n - 2 * i <= a + b) {
      for (j = 0; j <= b; j++) {
        if (n - 2 * i - j <= a && n - 2 * i - j >= 0) {
          w++;
        }
      }
    }
  }
  cout << w;
  return 0;
}
