/in/foo.cc: In function 'int main()':
/in/foo.cc:4:6: error: 'a' was not declared in this scope
  cin,a,b;
      ^
/in/foo.cc:4:8: error: 'b' was not declared in this scope
  cin,a,b;
        ^
/in/foo.cc:6:5: error: 'reture' was not declared in this scope
     reture 0;
     ^~~~~~
/in/foo.cc:6:5: note: suggested alternative: 'rename'
     reture 0;
     ^~~~~~
     rename