Problem_11340.java

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Scanner;
import static java.lang.System.out;

/**
 * mistake: did not use BufferedReader to read in large files, resulting in very slow run time :-( 
 * try not to declare new variables in loops too .
 */
public class Main {

  public static void main(String[] args) throws IOException {
		//Scanner in = new Scanner(System.in);
		
		StringBuffer sb = new StringBuffer();
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		
		int tests = Integer.parseInt(br.readLine());
		while(tests != 0) {
			
			int K = Integer.parseInt(br.readLine());

			HashMap<Character,Integer> hm = new HashMap<Character, Integer>();
			
			long sum = 0;  
			
			String line;
			for(int i=0; i<K; i++) {
				line = br.readLine();
				char c = line.charAt(0);
				hm.put(c, Integer.parseInt(line.substring(1).trim()));
				
				// System.out.println(c + " " + Integer.parseInt(line.substring(1).trim()));				
			}
			
			
			int M = Integer.parseInt(br.readLine());
			
			for(int i=0;i<M; i++) {
				line = br.readLine();
				//out.println(line);
				char[] chars = line.toCharArray();
				
				for(char c : chars) {
					
					if(hm.containsKey(c)){
						sum+=hm.get(c);
	                }
					 
				}
			}
			
			System.out.format("%.2f$%n", (double) sum/100);
			
			 
			tests--;
		}
		
		
	}//end of void main 
}//end of class main