#include <bits/stdc++.h>
#pragma GCC optimize("O3")
#pragma GCC target("sse4")
using namespace std;
using ll = long long;
using vi = vector<int>;
using vl = vector<ll>;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using str = string;
const char nl = '\n';
;
str to_string(char c) { return str(1, c); }
str to_string(bool b) { return b ? "true" : "false"; }
str to_string(const char* second) { return (str)second; }
str to_string(str second) { return second; }
template <class A>
str to_string(complex<A> c) {
  stringstream ss;
  ss << c;
  return ss.str();
}
str to_string(vector<bool> v) {
  str res = "{";
  for (int i = 0; i < v.size(); i++) res += char('0' + v[i]);
  res += "}";
  return res;
}
template <size_t SZ>
str to_string(bitset<SZ> b) {
  str res = "";
  for (int i = 0; i < b.size(); i++) res += char('0' + b[i]);
  return res;
}
template <class A, class B>
str to_string(pair<A, B> p);
template <class T>
str to_string(T v) {
  bool fst = 1;
  str res = "{";
  for (const auto& x : v) {
    if (!fst) res += ", ";
    fst = 0;
    res += to_string(x);
  }
  res += "}";
  return res;
}
template <class A, class B>
str to_string(pair<A, B> p) {
  return "(" + to_string(p.first) + ", " + to_string(p.second) + ")";
}
void DBG() { cerr << "]" << endl; }
template <class H, class... T>
void DBG(H h, T... t) {
  cerr << to_string(h);
  if (sizeof...(t)) cerr << ", ";
  DBG(t...);
}
queue<int> bruh[(int)3e5 + 69];
signed main() {
  cin.tie(nullptr);
  ios_base::sync_with_stdio(false);
  int n, q;
  cin >> n >> q;
  set<int> gg;
  int total = 0;
  for (int z = 0; z < q; z++) {
    int t;
    cin >> t;
    if (t == 1) {
      int x;
      cin >> x;
      x--;
      bruh[x].push(total);
      gg.insert(total);
      total++;
    }
    if (t == 2) {
      int x;
      cin >> x;
      x--;
      while (!bruh[x].empty()) {
        int nex = bruh[x].front();
        bruh[x].pop();
        gg.erase(nex);
      }
    }
    if (t == 3) {
      int x;
      cin >> x;
      x--;
      while (!gg.empty() && *gg.begin() <= x) {
        gg.erase(gg.begin());
      }
    }
    cout << gg.size() << nl;
  }
}
