31a32,33
> #include <iostream>
>
61c63
< void print(ostream& out) const;
---
> void print(std::ostream& out) const;
72,73c74,75
< inline ostream&
< operator<<(ostream& out, const SubBlock& obj)
---
> inline std::ostream&
> operator<<(std::ostream& out, const SubBlock& obj)
76c78
< out << flush;
---
> out << std::flush;