Set .difference() Operation

Hacker
Rank
Score
01
flag of China
10.00
01
flag of Czech Republic
10.00
01
flag of United States
10.00
01
flag of United States
10.00
01
flag of India
10.00
01
flag of Bulgaria
10.00
01
flag of United States
10.00
01
flag of United States
10.00
01
flag of India
10.00
01
flag of Greece
10.00
01
flag of Brazil
10.00
01
flag of United States
10.00
01
flag of United States
10.00
01
flag of United States
10.00
01
flag of Belarus
10.00
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