#include<iostream>
#include<algorithm>
#include<vector>
#include<cassert>
#define REP(i,s,n) for(int i=s;i<n;i++)
#define rep(i,n) REP(i,0,n)
#define inf (1<<28)
 
using namespace std;
typedef pair<int,int> ii;
int field[5010][5];
int top[5];
int n,d,p,q;
vector<ii> input;
 
 
void print()
{
  int st = 0;
  rep(i,5)st = max(st,top[i]);
  for(int y=st;y>=0;y--)
    {
      rep(x,5)
    {
      cout << field[y][x] << " ";
    }
      cout << endl;
    }
}
 
bool checkX(int y)
{
  rep(x,5)if(!field[y][x])return false;
  return true;
}
 
void updateD(int x,int y)
{
  ii info = input[field[y][x]];
  if(info.first == 1)
    {//yoko
      //while(true)
	//{
      bool check = true;
      rep(i,5)
        {
          if(field[y][x] != field[y][i])continue;
          if(y-1 >= 0 && field[y-1][i] != 0)
        {
          check = false;
          break;
        }
        }
      if(!check)return;
      int v = field[y][x];
      rep(i,5)
        {
          if(v != field[y][i])continue;
          assert(field[y-1][i] == 0);
          field[y-1][i] = field[y][i];
          field[y][i] = 0;
        }
      y = y-1;
      if(y <= 0)return;
      //}
    }
  else
    {
      int v = field[y][x];
     
      int bot = 0;
      int py = y;
      while(py-1 >= 0 && field[py-1][x] == 0)py--;
      bot = y-py;
 
      if(bot == 0)return;
      bot = 1;//fewafaw
      while(v == field[y][x])
    {
      assert(y-bot >= 0);
      assert(field[y-bot][x] == 0);
      field[y-bot][x] = field[y][x];
      field[y][x] = 0;
      y++;
    }
     
    }
}
 
int main()
{
  while(cin >> n,n)
    {
      input.clear();
      input.resize(1010,ii(-1,-1));
      rep(i,5010)rep(j,5)field[i][j] = 0;
      rep(i,5)top[i] = 0;
      REP(i,1,n+1)
    {
      cin >> d >> p >> q;
      if(d == 1 && p == 5)continue;
      q--;
      input[i] = ii(d,p);
      int cyb,cyt;
      if(d == 2)
        {
          cyb = top[q],cyt = top[q]+p;
          REP(j,top[q],top[q]+p)field[j][q] = i;
          top[q] += p;
        }
      else
        {
          int mexico = -inf;
          REP(j,q,q+p)mexico = max(mexico,top[j]);
          REP(j,q,q+p)field[mexico][j] = i;
          cyb = cyt = mexico;
          REP(j,q,q+p)top[j] = mexico+1;
        }
 
      bool update = true;
      while(update)
	{
	  update = false;
      vector<int> erasedY;
      REP(y,cyb,cyt+1)
        {
          if(checkX(y))
        {
	  update = true;
          erasedY.push_back(y);
          rep(x,5)field[y][x] = 0;
        }
        }
 
      //print();
      //down
      if(!erasedY.empty())
        {
 
 
          int yt = 0;
          rep(j,5)yt = max(yt,top[j]);
          rep(j,erasedY.size())
        {
          REP(y,erasedY[j],yt)
            {
              int pre = -1;
              rep(x,5)
            {
              if(field[y][x] == pre)continue;
              if(field[y][x] == 0 || y-1 < 0)continue;
 
              pre = field[y][x];
              updateD(x,y);
            }
            }
        }
 
 
        }
      //update top
 
      rep(j,5)
        {
          int y = top[j];
          while(y >= 0 && field[y][j] == 0)y--;
          top[j] = y+1;
        }
      /*
      cout << "top = ";
      rep(j,5)cout << top[j] << " ";
      cout << endl;
      print();
 
      cout << "----------------" << endl;
      */
	}
    }
      int yt = 0;
      rep(i,5)yt = max(yt,top[i]);
      int ans = 0;
      rep(y,yt)
    rep(x,5)
          if(field[y][x] != 0)ans++;    
      cout << ans << endl;
    }
  return 0;
}