#include <iostream>
#include <fstream>
#include <set>
#include <vector>

struct pillow
{
  int x, y, s;
};

int main(int argc, char *argv[])
{
  std::ifstream in(argv[1]);
  if (!in.is_open())
  {
    std::cout << "Error opening file" << std::endl;
    return 1;
  }
  int N, V, S;
  in >> N >> V >> S;

  std::vector<std::multiset<int>> columns(S);
  char c;
  int row;
  std::vector<pillow> pillows;
  pillows.reserve(N);
  pillow p;
  int max_fall = 0;

  for (size_t i = 0; i < N; i++)
  {
    in >> c;
    if (c == '+')
    {
      in >> p.x >> p.y >> p.s;
      p.s--;
      pillows.push_back(p);
      for (int j = p.y; j <= p.y + p.s; j++)
      {
        columns[j].insert(p.x);
      }
    }
    else
    {
      in >> row;
      pillow p = pillows[row - 1];
      for (int j = p.y; j <= p.y + p.s; j++)
      {
        columns[j].erase(columns[j].find(p.x));
      }
    }

    for (auto &i : columns)
    {
      auto it = i.begin();
      if (it == i.end())
      {
        max_fall = V;
        break;
      }
      else
      {
        if (*it > max_fall)
          max_fall = *it;
      }
    }
    std::cout << max_fall << std::endl;
    max_fall = 0;
  }

  return 0;
}