#include <bits/stdc++.h>
using namespace std;
template <typename Arg1>
void __f(const char* name, Arg1&& arg1) {
  cerr << name << " : " << arg1 << std::endl;
}
template <typename Arg1, typename... Args>
void __f(const char* names, Arg1&& arg1, Args&&... args) {
  const char* comma = strchr(names + 1, ',');
  cerr.write(names, comma - names) << " : " << arg1 << " | ";
  __f(comma + 1, args...);
}
const int mod = 1e9 + 7;
int main() {
  int n;
  cin >> n;
  map<string, int> mp;
  for (int i = 0; i < n; i++) {
    string s;
    cin >> s;
    if (mp.find(s) != mp.end()) {
      cout << "YES\n";
      continue;
    } else {
      cout << "NO\n";
      mp[s] = 1;
    }
  }
  return 0;
}
