Set .difference() Operation

Hacker
Rank
Score
01
flag of United States
10.00
01
flag of Philippines
10.00
01
flag of Japan
10.00
01
flag of India
10.00
01
flag of India
10.00
01
flag of Russian Federation
10.00
01
flag of Puerto Rico
10.00
01
flag of United States
10.00
01
flag of United States
10.00
01
flag of Australia
10.00
01
flag of India
10.00
01
flag of Asia/Pacific Region
10.00
01
flag of India
10.00
01
flag of United States
10.00
01
flag of United States
10.00
01
flag of United States
10.00
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