#include <bits/stdc++.h>
using namespace std;
int main() {
  int N;
  cin >> N;
  vector<int> A(N);
  for (int i = 0; i < N; i++) {
    cin >> A.at(i);
  }
  int money = 1000;
  int stump = 0;
  for (int i = 0; i < N; i++) {
    if (i < N - 1) {
      if (A.at(i) < A.at(i + 1)) {
        while (money >= A.at(i)) {
          money -= A.at(i);
          stump++;
        }
      } else if (A.at(i) > A.at(i + 1)) {
        continue;
      } else {
        while (stump > 0) {
          money += A.at(i);
          stump--;
        }
      }
    } else {
      while (stump > 0) {
        money += A.at(i);
        stump--;
      }
    }
  }
  cout << money << endl;
}
