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| 0001493152-22-013772.txt | 2022-05-16 16:07:19 | |
 0001493152-22-013772-xbrl.zip | 191369 | 2022-05-16 16:07:19 |
| dss-20220331.xsd | 53402 | 2022-05-16 16:07:19 |
| dss-20220331_cal.xml | 56348 | 2022-05-16 16:07:19 |
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| Financial_Report.xlsx | 84652 | 2022-05-16 16:07:19 |
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