#include <iostream>
#include <fstream>
#include <cstdio>
#include <cstdlib>
#include <string>
using namespace std;

int arr[1000];

void clear(){
    for(int i = 0; i < 1000; i++){
            arr[i] = 0;
    }
}

int getMaxHeight(int xmin, int xmax){
    int h = arr[xmin];
    for(int i = xmin+1; i < xmax; i++){
        if(arr[i] > h){
            h = arr[i];
        }
    }
    return h;
}
int main() {
    string fname, line;
    cin >> fname;
    ifstream inputFile(fname.c_str());
    int t, b, xmin, xmax, h, maxh, ht;
    inputFile >> t;
    for(int i = 0; i < t; i++){
        clear();
        //cout << t << endl;
        inputFile >> b;
        //cout << b << endl;
        for(int i = 0; i < b; i++){
            inputFile >> xmin;
            inputFile >> xmax;
            inputFile >> h;
            maxh = getMaxHeight(xmin, xmax);
            //cout << xmin << " " << xmax << " " << h << " " << maxh << endl;
            for(int j = xmin; j < xmax; j++){
                arr[j] = maxh+h;
            }
        }

        // search contour
        int prevHeight = 0, prevXmin = 0;
        cout << "(0,0) ";
        for(int i = 0; i < 1000; i++){
            if(arr[i] != prevHeight){
                cout << "(" <<  i << "," << prevHeight << ") " ;
                cout << "(" <<  i << "," << arr[i] << ") " ;
            }
            prevHeight = arr[i];
            prevXmin = i;
        }
        cout << "(1000,0)" << endl;
    }

    return 0;
}