Run id: 122467

Main.cc:2:17: error: 'tsd' is not a namespace-name
 using namespace tsd;
                 ^
Main.cc:2:20: error: expected namespace-name before ';' token
 using namespace tsd;
                    ^
Main.cc: In function 'int main()':
Main.cc:6:2: error: 'cin' was not declared in this scope
  cin>>b;
  ^
Main.cc:6:2: note: suggested alternative:
In file included from Main.cc:1:0:
/usr/include/c++/5/iostream:60:18: note:   'std::cin'
   extern istream cin;  /// Linked to standard input
                  ^
Main.cc:19:3: error: 'cout' was not declared in this scope
   cout<