import java.awt.*;
import java.awt.geom.*;
import java.io.*;
import java.util.*;

public class AbstractArt {
    public static double getArea(Area area) {
        PathIterator pathIterator = area.getPathIterator(null);
        double[] coords = new double[6];
        double areaSum = 0.0;
        double lastX = 0.0, lastY = 0.0;
        while (!pathIterator.isDone()) {
            int type = pathIterator.currentSegment(coords);
            switch (type) {
                case PathIterator.SEG_MOVETO:
                    lastX = coords[0];
                    lastY = coords[1];
                    break;
                case PathIterator.SEG_LINETO:
                    areaSum += (lastX + coords[0]) * (lastY - coords[1]);
                    lastX = coords[0];
                    lastY = coords[1];
                    break;
                case PathIterator.SEG_CLOSE:
                    break;
            }
            pathIterator.next();
        }
        return Math.abs(areaSum) * 0.5;
    }
    public static void main(String[] args) throws IOException {
        FastIO fio = new FastIO();
        int t = fio.nextInt();
        double aa = 0, au = 0;
        Area a = new Area();
        while (t-- > 0) {
            Polygon p = new Polygon();
            int n = fio.nextInt();
            for (int i = 0; i < n; i++) {
                int x = fio.nextInt();
                int y = fio.nextInt();
                p.addPoint(x, y);
            }
            Area pp = new Area(p);
            a.add(pp);
            aa += getArea(pp);
        }
        fio.println(aa + " " + getArea(a));
        fio.close();
    }
}

class FastIO extends PrintWriter { 
    BufferedReader br; 
    StringTokenizer st;

    public FastIO() { 
        super(new BufferedOutputStream(System.out)); 
        br = new BufferedReader(new InputStreamReader(System.in));
    } 

    String next() { 
        while (st == null || ! st.hasMoreElements()) { 
            try { st = new StringTokenizer(br.readLine()); } 
            catch (IOException  e) { e.printStackTrace(); } 
        } 
        return st.nextToken(); 
    } 

    int nextInt() { return Integer.parseInt(next()); } 
    long nextLong() { return Long.parseLong(next()); } 
    double nextDouble() { return Double.parseDouble(next()); } 

    String nextLine() { 
        String str = ""; 
        try { str = br.readLine(); } 
        catch (IOException e) { e.printStackTrace(); } 
        return str; 
    } 
}