#include <bits/stdc++.h>   using namespace std;   long long int n, t, m;   int vi[200010];   vector<int> v[200010];   map<int, int> mp;   int main() {     long long int a, b, c, r, l = 0, tt;     cin >> r >> a >> b >> c;     if ((b - c) <= a) {       if (r >= b) {         tt = (long long int)((double)(r - b) / (double)(b - c));         t = tt++;         if (t == tt) {           t++;         }         r = r - t * (b - c);         l = l + t;         while (r >= b) {           r = r - (b - c);           l++;         }       }       if (r >= a) {         t = r / a;         r = r - t * a;         l = l + t;       }     } else {       if (r >= a) {         t = r / a;         r = r - t * a;         l = l + t;       }       if (r >= b) {         tt = (long long int)((double)(r - b) / (double)(b - c));         t = tt++;         if (t == tt) {           t++;         }         r = r - t * (b - c);         l = l + t;         while (r >= b) {           r = r - (b - c);           l++;         }       }     }     cout << l << endl;     return 0;   }   