/in/foo.cc:2:7: error: expected nested-name-specifier before 'namesapce'
 using namesapce std;
       ^~~~~~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:5:1: error: 'fuck' was not declared in this scope
 fuck;
 ^~~~
/in/foo.cc:4:5: warning: unused variable 'a' [-Wunused-variable]
 int a;
     ^