Set .difference() Operation

Hacker
Rank
Score
179157
flag of India
00.00
179157
flag of India
00.00
179157
flag of India
00.00
179157
flag of Egypt
00.00
179157
flag of India
00.00
179157
flag of Philippines
00.00
179157
flag of Bolivia\r\nBolivia, Plurinational state of
00.00
179157
flag of Egypt
00.00
179157
flag of Saudi Arabia
00.00
179157
flag of India
00.00
179157
flag of India
00.00
179157
flag of India
00.00
179157
flag of India
00.00
179157
flag of Egypt
00.00
179157
flag of Armenia
00.00
179157
flag of Turkey
00.00
179157
flag of null
00.00
179157
flag of India
00.00
179157
flag of France
00.00
179157
flag of India
00.00
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