File list (Check if you may need any files):
ORL
...\s1
...\..\1.pgm
...\..\10.pgm
...\..\2.pgm
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...\...\6.pgm
...\...\7.pgm
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...\...\1.pgm
...\...\10.pgm
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...\...\7.pgm
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...\...\9.pgm
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...\...\1.pgm
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...\...\9.pgm
...\s13
...\...\1.pgm
...\...\10.pgm
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...\...\8.pgm
...\...\9.pgm