Redirect cin (c++) to multiple files in cmd

I have been searching it, but I cant manage to found the way. Basically I have two files: "hello.txt" and "bye.txt":


1 2 3 8 8


9 9 8 1 2

I know how to redirect cin to hello.txt using:

a.exe < hello.txt

So cin will recieve "1 2 3 8 8". But how can I make it to recieve info from both files "1 2 3 8 8 9 9 8 1 2". I have already tried to duplacate the <:

a.exe < hello.txt < bye.txt

But it didnt work, I also tried this:

a.exe < hello.txt <& bye.txt

But from what I read it wont work (It didnt). Any ideas? Thanks


It is not relevant to C++. Either you could change the code and read from many files provided as command line or you redirect first all files in one and read that one then:

type hello.txt > tmp.txt
type bye.txt >> tmp.txt
e.exe < tmp.txt

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