Molar Mass

import java.io.*;
import java.util.Locale;
import java.util.Scanner;
class Main {
    public static void main(String[] args) throws IOException{
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        Scanner input = new Scanner(System.in);
        int T=input.nextInt();
        while (T-- != 0) {
            String str=input.next();
            int length = str.length();
            double mass = 0.0;
            for (int i = 0; i < length; i++) {
                int x = 0;
                char ele = str.charAt(i);
                while ((i+1) < length && Character.isDigit(str.charAt(i+1))) {
                    i++;
                    x = x * 10 + (str.charAt(i) - '0');
                }
                if (x == 0) x = 1;
                mass = mass + f(ele) * x;
            }
            System.out.println(String.format(Locale.ENGLISH, "%.3f", mass));
        }
        in.close();
    }
    public static double f(char ch) {
        if (ch == 'C') return 12.01;
        else if (ch == 'H') return 1.008;
        else if (ch == 'O') return 16.00;
        else return 14.01;
    }
}