112

#include <iostream>

using namespace std;

int main() {
  cout << "+---------------------------------------+\n\
|1. NhapDuLieu  \n|2. SapXep  \n|3. Xuly  \n|4. Timkiem  \n|5. Luu  \n|6. Mo  \n|7. Thoat\n\
+----------------------------------------+\n";
  bool isOk = false;
  while (!isOk) {
    char option;
    cin >> option;
    if (option < '8' && option > '0') {
      char confirm;
      while (!isOk) {
        cout << "Ban co muon chon yeu cau tren hay khong?\n";
        cin >> confirm;
        if (confirm == 'y' ||confirm == 'Y' || confirm == '1') {
          cout << "Yes, I do\n";
          isOk = true;
          break;
        } else if (confirm == 'n' || confirm == 'N' || confirm == '0') {
          cout << "No, I don't\n";
          isOk = true;
          break;
        } else if (confirm == 'X' || confirm == 'x') {
          system("cls");
          return 0;
        } else {
          cout << "Vui long nhap lai!\n";
        }
      }
    } else {
      cout << "Vui long nhap lai!\n";
    }
  }
  return 0;
}