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This is a tool that will help you to compare two .txt files(a.txt and b.txt) about their intersection, union and difference.
The .txt files contains several lines and each of them was regarded as a value.
What you should do now is preparing your .txt files and putting them in the txt folder, Run A.VS.B.exe then press ENTER key to continue, you will find the .txt files you needed, they are: