text: #include <iostream>
  #include <string>
  #include <cctype>
  
  using std::string;
  using std::cin;
  using std::cout;
  using std::endl;
  
  int main(int argc, char const *argv[])
  {
      string s;
  
      while (getline(cin, s)) {
          for (auto &c : s) {
              if (!ispunct(c)) {
                  cout << c;
              }
          }
          cout << endl;
      }
  
      return 0;
  }