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Regex shorthands

Theory

Phone number

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You are going to check that the regional part of a phone number in some non-existing country is valid. The regional part of a number should consist of 3 symbols, so that:

  • the first one is a digit from 1 to 6;
  • the second symbol is a digit from 0 to 9;
  • the third symbol should be a hexadecimal representation (from 0 to F) of a number (in the uppercase).

Which one of the following regular expressions is valid?

Select one option from the list
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