Simple input parsing. Easy.

import java.io.PrintWriter;
import java.util.Scanner;

/**
 * 
 * @author Sanchit M. Bhatnagar
 * @see http://uhunt.felix-halim.net/id/74004
 * 
 */
public class P12503 {

  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    PrintWriter out = new PrintWriter(System.out);

    int T = sc.nextInt();
    for (int i = 0; i < T; i++) {
      int N = sc.nextInt();
      int[] moves = new int[N];
      int ans = 0;
      for (int j = 0; j < N; j++) {
        String input = sc.next();
        if (input.equals("LEFT")) {
          moves[j] = -1;
        } else if (input.equals("RIGHT")) {
          moves[j] = 1;
        } else {
          sc.next();
          moves[j] = moves[sc.nextInt() - 1];
        }
        ans += moves[j];
      }
      out.println(ans);
    }

    out.close();
    sc.close();
  }

}