Concatenate an array with itself

Hacker
Rank
Score
18827
flag of Hungary
00.00
18827
flag of Slovakia
00.00
18827
flag of United States
00.00
18827
flag of India
00.00
18827
flag of India
00.00
18827
flag of Belgium
00.00
18827
flag of United States
00.00
18827
flag of India
00.00
18827
flag of United States
00.00
18827
flag of Singapore
00.00
18827
flag of India
00.00
18827
flag of Portugal
00.00
18827
flag of India
00.00
18827
flag of India
00.00
18827
flag of India
00.00
18827
flag of India
00.00
18827
flag of India
00.00
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