11340_Newspaper

#include <bits/stdc++.h>

using namespace std;

map <char, float> table;
int test, n, m;
string s;
float pays;

int main () {
    #ifndef ONLINE_JUDGE
        freopen("uva11340.inp", "r", stdin);
    #endif // ONLINE_JUDGE

    scanf("%d", &test);
    for (int itest = 0; itest<test; ++itest) {
        scanf("%d", &n); getline(cin, s);
        table.clear(); pays = 0.0;

        for (int i=0; i<n; ++i) {
            char chara; float cents;
            scanf("%c%f", &chara, &cents);
            //cout << chara << " " << cents << endl;
            table[chara] = cents; getline(cin, s);
        }

        scanf("%d", &m); cin.ignore();
        for (int i=0; i<m; ++i) {
            getline(cin, s);
            int len = s.length();
            //cout << s << endl;

            for (int j=0; j<len; ++j) {
                if (table.find(s[j]) != table.end()) pays += table.find(s[j]) -> second;
                //cout << pays << " ";
            }
        }

        pays /= 100;
        printf("%.2lf$\n", pays);
    }

    return 0;
}