In a memory challenge on "The Brain Vietnam," contestants had to memorize over 2200 numbers and letters associated with audience members' phone numbers, barcodes, and abbreviations. Copies of the data were distributed for verification, and the contestant had two hours to memorize everything. The challenge was to recall the information and dial the correct numbers. Despite initial difficulty, the contestant succeeded in two out of three attempts, impressing the judges and earning high marks, which led to her joining "The Brain Vietnam" team.
Here are the key facts extracted from the text:
1. 100 studio audiences were selected to write phone numbers and abbreviation names on a form with a barcode.
2. Each paper form was multiplied into 3 copies.
3. The first copy was kept by the audiences for answer comparison.
4. The second copy was attached to the package.
5. The third copy was used by the duelist for memorization.
6. The duelist had 2 hours to memorize barcodes, phone numbers, and abbreviation names.
7. A judge board randomly picked a package based on its barcode.
8. The duelist had to recall the phone numbers and dial them using a smartphone provided by the organizing board.
9. If the phone rang twice out of three attempts, the challenge was considered successful.
10. There were a total of 2200 numbers to memorize.
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