import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.Scanner;


public class parlay {

	public static void main(String[] args) {
		new parlay().go();

	}

	private void go() {
		Scanner in = new Scanner(System.in);
		int N = in.nextInt();
		for(int i = 0;i<N;i++){
			int wager = in.nextInt();
			int n = in.nextInt();
			ArrayList<Integer> bets = new ArrayList<Integer>();
			ArrayList<String> results = new ArrayList<String>();
			int line;
			String res;
			for(int j = 0;j<n;j++){
				line = in.nextInt();
				res = in.next();
				bets.add(line);
				results.add(res);
			}
			double ans = calcWinnings(wager,bets,results);
			if(ans>1000000){
				ans = 1000000;
			}
			DecimalFormat df = new DecimalFormat("#,###,##0.00");
			String newAns= df.format(ans);
			System.out.printf("$%s\n",newAns);
		}
		
	}

	private double calcWinnings(int wager,ArrayList<Integer> bets,
			ArrayList<String> results) {
		// TODO Auto-generated method stub
		double ans = (double) wager;
		for(int k = 0;k<bets.size();k++){
			if(results.get(k).equals("Loss")){
				return 0.00;
			} else if(results.get(k).equals("Win")){
				if (bets.get(k)<0){
					double toAdd = Math.abs(100.0/bets.get(k));
					toAdd = toAdd * 1000 + 0.000001;
					toAdd = Math.floor(toAdd)/1000.0;
					toAdd = toAdd * ans;

					ans = ans + toAdd;
					ans = ans * 100 + 0.00001;
					ans = Math.floor(ans);
					ans = ans/100.0;
				} else if(bets.get(k)>0){
					double toAdd = bets.get(k)/100.0;
					toAdd = toAdd * 1000 + 0.000001;
					toAdd = Math.floor(toAdd)/1000.0;
					
					toAdd = toAdd * ans;
					ans = ans + toAdd;
					ans = ans * 100 + 0.00001;
					ans = Math.floor(ans);
					ans = ans/100.0;
				}
			}
		}
		if(ans > 1000000){
			return 1000000.00;
		}
		return ans;
	}

}