Run id: 101161

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 mian()':
Main.cc:5:5: error: 'cout' was not declared in this scope
     cout<<1*2*3*4*5<& __os)
     ^