Run id: 81334

Main.cc: In function 'int main()':
Main.cc:5:6: error: 'cin' was not declared in this scope
  a = cin.get(); 
      ^
Main.cc:8:3: error: 'cout' was not declared in this scope
   cout << a - 1 << endl; 
   ^
Main.cc:8:20: error: 'endl' was not declared in this scope
   cout << a - 1 << endl; 
                    ^
Main.cc:12:3: error: 'cout' was not declared in this scope
   cout << "Input Error!" << endl; 
   ^
Main.cc:12:29: error: 'endl' was not declared in this scope
   cout << "Input Error!" << endl; 
                             ^
Main.cc:16:4: error: 'cout' was not declared in this scope
    cout << a + 1 << endl; 
    ^
Main.cc:16:21: error: 'endl' was not declared in this scope
    cout << a + 1 << endl; 
                     ^
Main.cc:20:2: error: 'cout' was not declared in this scope
  cout << "Input Error!" << endl; 
  ^
Main.cc:20:28: error: 'endl' was not declared in this scope
  cout << "Input Error!" << endl; 
                            ^