import java.io.*;
import java.util.*;

public class Main {

    Scanner in = new Scanner(new BufferedReader(new InputStreamReader(System.in)));
    PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(System.out)));

    public void solution() throws IOException {
        int q = in.nextInt();
        while (q-- > 0) {
            int n = in.nextInt();
            double x = 0;
            double y = 0;
            double dx = 1;
            double dy = 0;
            double angle = 0;
            for (int i = 0; i < n; ++i) {
                String cmd = in.next();
                int val = in.nextInt();
                if (cmd.equals("fd")) {
                    x += val * dx;
                    y += val * dy;
                } else if (cmd.equals("bk")) {
                    x -= val * dx;
                    y -= val * dy;
                } else if (cmd.equals("lt")) {
                    angle += Math.toRadians(val);
                    dx = Math.cos(angle);
                    dy = Math.sin(angle);
                } else if (cmd.equals("rt")) {
                    angle -= Math.toRadians(val);
                    dx = Math.cos(angle);
                    dy = Math.sin(angle);
                }
            }
            out.println((int) Math.round(Math.sqrt(x * x  + y * y)));
        }
        out.flush();
    }

    private class Scanner {
        BufferedReader reader;
        StringTokenizer tokenizer;

        public Scanner(BufferedReader reader) {
            this.reader = reader;
            this.tokenizer = new StringTokenizer("");
        }

        public boolean hasNext() throws IOException {
            while (!tokenizer.hasMoreTokens()) {
                String next = reader.readLine();
                if (next == null) {
                    return false;
                }
                tokenizer = new StringTokenizer(next);
            }
            return true;
        }

        public String next() throws IOException {
            hasNext();
            return tokenizer.nextToken();
        }

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

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

    }

    public static void main(String[] args) throws IOException {
        new Main().solution();
    }
}