#include <bits/stdc++.h>
using namespace std;
template <typename TH>
void _dbg(const char* sdbg, TH h) {
  cerr << sdbg << "=" << h << "\n";
}
template <typename TH, typename... TA>
void _dbg(const char* sdbg, TH h, TA... t) {
  while (*sdbg != ',') cerr << *sdbg++;
  cerr << "=" << h << ",";
  _dbg(sdbg + 1, t...);
}
template <class C>
void mini(C& a4, C b4) {
  a4 = min(a4, b4);
}
template <class C>
void maxi(C& a4, C b4) {
  a4 = max(a4, b4);
}
template <class T1, class T2>
ostream& operator<<(ostream& out, pair<T1, T2> pair) {
  return out << "(" << pair.first << ", " << pair.second << ")";
}
template <class A, class B, class C>
struct Triple {
  A first;
  B second;
  C third;
  bool operator<(const Triple& t) const {
    if (first != t.first) return first < t.first;
    if (second != t.second) return second < t.second;
    return third < t.third;
  }
};
template <class T>
void ResizeVec(T&, vector<long long>) {}
template <class T>
void ResizeVec(vector<T>& vec, vector<long long> sz) {
  vec.resize(sz[0]);
  sz.erase(sz.begin());
  if (sz.empty()) {
    return;
  }
  for (T& v : vec) {
    ResizeVec(v, sz);
  }
}
template <class A, class B, class C>
ostream& operator<<(ostream& out, Triple<A, B, C> t) {
  return out << "(" << t.first << ", " << t.second << ", " << t.third << ")";
}
template <class T>
ostream& operator<<(ostream& out, vector<T> vec) {
  out << "(";
  for (auto& v : vec) out << v << ", ";
  return out << ")";
}
template <class T>
ostream& operator<<(ostream& out, set<T> vec) {
  out << "(";
  for (auto& v : vec) out << v << ", ";
  return out << ")";
}
int32_t main() {
  ios_base::sync_with_stdio(0);
  cout << fixed << setprecision(10);
  if (0) cout << fixed << setprecision(10);
  cin.tie(0);
  map<char, long long> can;
  for (long long i = ('a'); i <= ('z'); ++i) {
    can[i] = 1;
  }
  long long n;
  cin >> n;
  long long res = 0;
  long long is_determined = 0;
  for (long long _ = (1); _ <= (n); ++_) {
    char typ;
    cin >> typ;
    if (typ == '!') {
      if (is_determined) {
        res++;
      }
      string s;
      cin >> s;
      map<char, long long> was_here;
      for (auto c : s) {
        was_here[c] = 1;
      }
      for (long long i = ('a'); i <= ('z'); ++i) {
        if (!was_here[i]) {
          can[i] = 0;
        }
      }
    } else if (typ == '.') {
      string s;
      cin >> s;
      for (auto c : s) {
        can[c] = 0;
      }
    } else {
      char c;
      cin >> c;
      can[c] = 0;
      if (is_determined && _ != n) {
        res++;
      }
    }
    long long sum = 0;
    for (auto p : can) {
      sum += p.second;
    }
    is_determined = (sum == 1);
    (_, is_determined, sum);
  }
  cout << res << endl;
  return 0;
}
