Concatenate an array with itself

Hacker
Rank
Score
18821
flag of India
00.00
18821
flag of
00.00
18821
flag of India
00.00
18821
flag of India
00.00
18821
flag of India
00.00
18821
flag of
00.00
18821
flag of India
00.00
18821
flag of Turkey
00.00
18821
flag of India
00.00

[deleted]

18821
flag of null
00.00
18821
flag of Egypt
00.00
18821
flag of India
00.00
18821
flag of South Korea
00.00
18821
flag of India
00.00
18821
flag of India
00.00
18821
flag of United States
00.00
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