text: #include <iostream>
  #include <iomanip>
  #include <fstream>
  using namespace std;
  ifstream file1("seatPrice.txt");
  ifstream file2("seatAvailable.txt");
  ofstream file3("result.txt");
  struct Seat
  {
  	int cost;
  	char avail;
  };
  class ticket
  {
  private:
  	Seat theater[15][30];
  	int total;
  	int price_total;
  public:
  	ticket();
  	~ticket();
  	void viewPrice();
  	void viewSeat();
  	void orderSeat(int, int, int, char&);
  	void updateSeat(int, int, int);
  	void result();
  };