text: #include <iostream>
  #include <vector>
  #include <cstdint>
  
  #include "PickingNumbers.hpp"
  
  int main(int argc, char* argv []) {
    using namespace std;
    using namespace com::github::nimelo;
  
    size_t size;
    cin >> size;
    vector<int> numbers(size);
  
    while(cin >> numbers[--size]);
  
    PickingNumbers pc(numbers);
  
    cout << pc.count() << endl;
  
    return 0;
  }