#include <fstream>
using namespace std;

ifstream f("heapuri.in");
ofstream g("heapuri.out");

void HeapUp (int poz)
{
  if (poz>1 && H[P[poz]]<H[P[poz/2]])
  {
      int aux=H[P[poz]
          H[P[poz]=H[p[poz/2]];
          H[P[poz/2]]=aux;

          aux=V[P[poz]];
          V[P[poz]]=V[P[poz/2]];
          V[P[poz/2]]=aux;

      HeapUp(poz/2);
  }
  else return;
}
int main ()
{
    f>>n;
    for (i=1;i<=n;i++)
    {
        f>>x;
        if (x==1)
        {
            f>>H[++nr];
            V[nr]=P[nr]=nr;
            HeapUp(nr)
        }
    }
}