text: 
  #ifndef ECHOAPP_NUMBERTASK_H
  #define ECHOAPP_NUMBERTASK_H
  
  
  #include "ServerTaskInterface.h"
  #include <list>
  
  /**
   * Find all numbers from 0 to 9 in message and
   *  1. Sum of all numbers
   *  2. Prints all numbers in descending order
   *  3. Maximum and minimum values
   */
  class NumberTask : public ServerTaskInterface {
      std::list<int> numbers;
  
  public:
      void processClientMessage(const AbstractServerClient &client, std::string message) override;
  
  private:
      void extractNumbers(std::string message);
  };
  
  
  #endif //ECHOAPP_NUMBERTASK_H
  