Standardize Mobile Number Using Decorators

Hacker
Rank
Score
55111
flag of India
22.50
55111
flag of India
22.50
55111
flag of India
22.50
55111
flag of Turkey
22.50
55111
flag of Germany
22.50
55111
flag of United States
22.50
55111
flag of Argentina
22.50

[deleted]

55111
flag of null
22.50
55111
flag of India
22.50
55111
flag of India
22.50
55111
flag of India
22.50
55111
flag of Greece
22.50
55111
flag of Pakistan
22.50
55111
flag of India
22.50
55111
flag of United Kingdom
22.50
55111
flag of United Kingdom
22.50
55111
flag of India
22.50
55111
flag of Turkey
22.50
55111
flag of India
22.50
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