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Merge pull request #1 from CS673-Project/Lu-Zhang

Lu zhang
Merge pull request #2 from CS673-Project/FanghZ

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Merge pull request #3 from CS673-Project/master

1st pull test
Merge pull request #4 from CS673-Project/XSahn

Merge pull request #3 from CS673-Project/master
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Merge pull request #5 from CS673-Project/master

3rd merge test
Merge pull request #6 from CS673-Project/XSahn

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merge test from XShan
Merge pull request #7 from CS673-Project/XSahn

merge test from XShan
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Merge pull request #8 from CS673-Project/XSahn

test
Create README.md
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