#include <iostream>
#include <vector>
#include <algorithm>
#include <functional>
#include <queue>
#include <map>
#include <cmath>
#include <iomanip>
#include <set>
#include <cstdio>
#include <string>

using namespace std;

int main() {
  cin.tie(0);
  ios::sync_with_stdio(false);
  cout << fixed << setprecision(15);
  int n;
  cin >> n;
  long long a, b, c;
  cin >> a >> b >> c;
  c += n;
  if (a < b) {
    if (c - b - 1 + b - a - 1 >= n) {
      cout << "Yes" << endl;
    } else {
      cout << "No" << endl;
    }
  } else if (a > b) {
    a += 2 * n;
    b += 2 * n;
    if (a - b - 1 + b - c - 1 >= n) {
      cout << "Yes" << endl;
    } else {
      cout << "No" << endl;
    }
  }
  return 0;
}