Concatenate an array with itself

Hacker
Rank
Score
01
flag of Canada
01.00
01
flag of United States
01.00
01
flag of Germany
01.00
01
flag of United States
01.00
01
flag of India
01.00
01
flag of India
01.00
01
flag of India
01.00
01
flag of United Kingdom
01.00
01
flag of United States
01.00
01
flag of Ukraine
01.00
01
flag of Sweden
01.00
01
flag of Russia
01.00
01
flag of India
01.00
01
flag of India
01.00
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