/in/foo.cc: In function 'int main()':
/in/foo.cc:18:10: error: expected primary-expression before '.' token
   cin>>xy.mz>>xy.cj>>xz.py>>xz.ch1>>xz.ch2>>xz.fb;
          ^
/in/foo.cc:18:17: error: expected primary-expression before '.' token
   cin>>xy.mz>>xy.cj>>xz.py>>xz.ch1>>xz.ch2>>xz.fb;
                 ^
/in/foo.cc:18:22: error: 'xz' was not declared in this scope
   cin>>xy.mz>>xy.cj>>xz.py>>xz.ch1>>xz.ch2>>xz.fb;
                      ^~