package v006;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.io.PrintWriter;

import java.util.Arrays;

import java.util.StringTokenizer;

public class MobilePhoneCoverage_UVa688 {

static final double EPS = 1e-9;

public static void main(String[] args) throws IOException

{

Scanner sc = new Scanner(System.in);

PrintWriter out = new PrintWriter(System.out);

int tc = 1;

while(true)

{

int n = sc.nextInt();

if(n == 0)

break;

Rectangle[] recs = new Rectangle[n];

double[] x = new double[n<<1], y = new double[n<<1];

for(int i = 0; i < n; ++i)

{

Rectangle r = recs[i] = new Rectangle(sc.nextDouble(), sc.nextDouble(), sc.nextDouble());

x[i<<1] = r.ll.x;

x[i<<1|1] = r.ur.x;

y[i<<1] = r.ll.y;

y[i<<1|1] = r.ur.y;

}

Arrays.sort(x);

Arrays.sort(y);

double ans = 0;

for(int i = 0, end = (n<<1)-1; i < end; ++i)

for(int j = 0; j < end; ++j)

{

double x1 = x[i], x2 = x[i+1], y1 = y[j], y2 = y[j+1];

Point p = new Point((x1+x2)/2, (y1+y2)/2);

for(Rectangle r: recs)

if(r.contains(p))

{

ans += (x2 - x1) * (y2 - y1);

break;

}

}

out.printf("%d %.2f\n", tc++, ans);

}

out.flush();

out.close();

}

static class Point

{

double x, y;

Point(double a, double b) { x = a; y = b; }

}

static class Rectangle

{

Point ll, ur;

Rectangle(double x, double y, double r)

{

ll = new Point(x - r, y - r);

ur = new Point(x + r, y + r);

}

boolean contains(Point p)

{

return ll.x < p.x + EPS && p.x < ur.x + EPS && ll.y < p.y + EPS && p.y < ur.y + EPS;

}

}

static class Scanner

{

StringTokenizer st;

BufferedReader br;

public Scanner(InputStream s){ br = new BufferedReader(new InputStreamReader(s));}

public String next() throws IOException

{

while (st == null || !st.hasMoreTokens())

st = new StringTokenizer(br.readLine());

return st.nextToken();

}

public int nextInt() throws IOException {return Integer.parseInt(next());}

public long nextLong() throws IOException {return Long.parseLong(next());}

public String nextLine() throws IOException {return br.readLine();}

public double nextDouble() throws IOException { return Double.parseDouble(next()); }

public boolean ready() throws IOException {return br.ready();}

}

}