10C1

#include <iostream>
#include "func_c.h"

using std::cin;
using std::cout;
using std::endl;

int main() {
  int n, q, x, k; cin >> n;
  char cmd;
  MyVector vec;
  read(vec, n);
  cin >> q;
  while (q--) {
    cin >> cmd;
    if (cmd == '+') {
      cin >> k >> x;
      if (k--) insert(vec, x, k);
      else push_back(vec, x);
    } else if (cmd == '-') {
      cin >> k;
      if (k--) erase(vec, k);
      else pop_back(vec);
    } else if (cmd == '?') {
        print_size(vec);
        cout << '\n';
    }
  }
  print(vec);
  del(vec);
}