Concatenate an array with itself

Hacker
Rank
Score
18745
flag of India
00.00
18745
flag of Sri Lanka
00.00
18745
flag of India
00.00
18745
flag of India
00.00
18745
flag of India
00.00
18745
flag of India
00.00

[deleted]

18745
flag of null
00.00
18745
flag of India
00.00
18745
flag of Spain
00.00
18745
flag of India
00.00
18745
flag of India
00.00
18745
flag of India
00.00
18745
flag of India
00.00
18745
flag of India
00.00
18745
flag of Thailand
00.00
18745
flag of India
00.00
18745
flag of India
00.00
18745
flag of India
00.00
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