// towers.cpp : Defines the entry point for the console application.
//

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

using namespace std;

struct pt { 
    int x, y;
    pt(int x_ = 0, int y_ = 0) : x(x_), y(y_) {}
};
bool operator <(const pt& l, const pt& r) { return l.x < r.x || l.x == r.x && l.y < r.y; }
set<pt> pts;

void dump_pts() {
    for (set<pt>::iterator i(pts.begin()), e(pts.end()); i != e; i++) {
        cout << i->x << ", " << i->y << endl;
    }
}

int calc_pts() {
    int c = 0;
    for (set<pt>::iterator i(pts.begin()), e(pts.end()); i != e; i++) {
        bool uf = true;
        for(set<pt>::iterator j(pts.begin()); uf && j != i; j++) {
            int dx = i->x - j->x;
            int dy = i->y - j->y;
            if ( dx > 0 && dy > 0 || dx == 0 && dy > 0 || dx > 0 && dy == 0)
                uf = false;
        }
        if (uf) c++;
    }
    return c;
}

int main(int argc, char* argv[])
{
    ifstream in;
    in.open("towers.in");
    ofstream out;
    out.open("towers.out");
    int N;
    in >> N;
    for (int i = 0; i < N; i++) {
        int a, x, y;
        in >> a >> x >> y;
        if (a == 1)
            pts.insert(pt(x, y));
        else
            pts.erase(pt(x, y));

        //dump_pts(); cout << endl;
        out << calc_pts() << endl;
    }

    out.close();
	return 0;
}