src.cpp:5:1: error: expected constructor, destructor, or type conversion before '>>' token
>>b;
^
src.cpp:6:3: error: 'cout' does not name a type
cout << a*b <<endl;
^
src.cpp:7:3: error: 'cout' does not name a type
cout << a+b;{
^
src.cpp:7:15: error: expected unqualified-id before '{' token
cout << a+b;{
^