Output needs flushing as soon as it get printed

[Gowee]

Hello,

This interpreter is great and useful for me to run malbolge scripts. But I notice that for interactive programs which do not print line feed (\n) in time, the output won't show at all.
I think this problem can be solved by flushing stdout as soon as there is output:

malbolge-rs/src/main.rs

Line 180 in 3d110a3

'<' => print!("{}", r_a as u8 as char),

(Stdout and Write::flush.