Is it possible to pipe multiple inputs into one program? [closed]

Question

I have a C program that takes in 2 separate inputs through the read(0,buffer,size(buffer)) function. They take two different inputs. Is it possible, through bash command only, to pipe two pytho -c or perl -e scripts into the C program? Or do I have to change its source code? Thanks in advance

Answer 1

You can use a command group

{
   echo "First command"
   echo "Second command"
} | nl

Or on one line for your interactive editing convenience:

{ echo "First"; echo "Second"; } | nl