Autograding Test Cases

First of all thank you github for adding this feature and thank you in advanced to the community for helping out.

I’m having trouble setting up the input/output compare for test cases.
My Input is as follows:

And my output is as follows:

I have an input.txt file that i include in the repo, and run the command ./a.out < input.txt
On command line, a.out < input.txt comes out exactly as the expected output. Somehow, when i use autograder to runs, it seems to run with the correct output, but it says test fail to match.

Im wondering how can i create output that would be recognized as a match.
Or is there characters being embedded that I dont know about that I have to include in the output.

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