Nios SDk Shell can't display my inputs

type:nios2-terminal and waiting for running my program.

But Nios SDk Shell can't display my inputs during running my program.

But in nios IDE console,I can see my inputs.

So WHY??

p.s. My program is a simple command prigram,which is a console app.

I did "nios2-download -g myImage" and "nios2-terminal " at first.