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#include <bits/stdc++.h>
#include <math.h>
using namespace std;
#define endl "\n"
#define mp make_pair
#define st first
#define nd second
#define pii pair<int, int>
#define pb push_back
#define _upgrade ios_base::sync_with_stdio(0), cout.setf(ios::fixed), cout.precision(10), cin.tie(0), cout.tie(0);
#define REP(i, n) for (int i = 0; i < (n); ++i)
#define FWD(i, a, b) for (int i = (a); i < (b); ++i)
#define rep(i, n) for (int32_t i = 0; i < (n); ++i)
#define fwd(i, a, b) for (int i = (a); i < (b); ++i)
#define all(c) (c).begin(), (c).end()
#define sz(X) (int)((X).size())
#define what(x) cerr << #x << " is " << x << endl;

ostream &operator<<(ostream &out, string str) {
   for (char c : str)
      out << c;
   return out;
}
template <class L, class R> ostream &operator<<(ostream &out, pair<L, R> p) { return out << "(" << p.st << ", " << p.nd << ")"; }
template <class T> auto operator<<(ostream &out, T a) -> decltype(a.begin(), out) {
   out << '{';
   for (auto it = a.begin(); it != a.end(); it = next(it))
      out << (it != a.begin() ? ", " : "") << *it;
   return out << '}';
}
void dump() { cerr << "\n"; }
template <class T, class... Ts> void dump(T a, Ts... x) {
   cerr << a << ", ";
   dump(x...);
}
#define DEBUG false
#define debug(...)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     \
   if (DEBUG)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          \
   cerr << "[" #__VA_ARGS__ "]: ", dump(__VA_ARGS__)

const int MAXN = 30;

vector<char> operacja[MAXN];
vector<int> tab[MAXN];
long long zmienna[MAXN];
int counter[MAXN];
long long global;
int n;

inline void make(int i) {
   int j = counter[i]++;
   switch (operacja[i][j]) {
   case '+':
      zmienna[i] += tab[i][j];
      break;
   case '-':
      zmienna[i] -= tab[i][j];
      break;
   case 'W':
      zmienna[i] = global;
      break;
   case 'Z':
      global = zmienna[i];
      break;
   }
}

void clear_counter() {
   global = 0;
   rep(i, n) counter[i] = zmienna[i] = 0;
}

void clear() {
   rep(i, MAXN) {
      tab[i].clear();
      operacja[i].clear();
      counter[i] = zmienna[i] = 0;
   }
}

int32_t main() {
   int Z;
   cin >> Z;
   while (Z--) {
      cin >> n;
      clear();
      vector<int> X;

      rep(i, n) {
         int l;
         cin >> l;
         rep(j, l) {
            X.push_back(i);
            char c;
            cin >> c;
            operacja[i].push_back(c);
            int a = 0;
            if (c == '+' || c == '-') {
               cin >> a;
            }
            tab[i].push_back(a);
         }
      }

      long long mini = 1e18;
      do {
         clear_counter();
         for (int a : X)
            make(a);
         mini = min(mini, global);
      } while (next_permutation(all(X)));
      cout << mini << endl;
   }
}