func_code_string: #include <bits/stdc++.h>   using namespace std;   int INT_MAX_VAL = (int)1e20;   int INT_MIN_VAL = (int)-1e20;   long long LONG_MAX_VAL = (long long)1e20;   long long LONG_MIN_VAL = (long long)-1e20;   long long C, Hr, Hb, Wr, Wb;   long long func(long long x) {     long long y = (C - Wb * x) / Wr;     return Hb * x + Hr * y;   }   long long solve() {     long long l = 0;     long long r = min(C / Wb, 10000000LL);     long long res = 0;     for (long long i = 0; i <= r; ++i) {       res = max(res, func(i));     }     return res;   }   int main() {     cin.tie(0);     ios::sync_with_stdio(false);     cin >> C >> Hr >> Hb >> Wr >> Wb;     long long res1 = solve();     swap(Hr, Hb);     swap(Wr, Wb);     long long res2 = solve();     cout << max(res1, res2) <<   n ;     return 0;   }   