The Fiscal Code

Each person in Italy has an unique identifying ID code issued by the national tax office after the birth registration: the Fiscal Code (Codice Fiscale).

Given a dictionary containing the personal data of a person (name, surname, gender and date of birth) return the 11 code characters as a string following these steps:

• Generate 3 capital letters from the surname, if it has:

  • At least 3 consonants then the first three consonants are used. (Newman -> NWM).
  • Less than 3 consonants then vowels will replace missing characters in the same order they appear (Fox -> FXO | Hope -> HPO).
  • Less than three letters then "X" will take the third slot after the consonant and the vowel (Yu -> YUX).

• Generate 3 capital letters from the name, if it has:

  • Exactly 3 consonants then consonants are used in the order they appear (Matt -> MTT).
  • More than 3 consonants then first, third and fourth consonant are used (Samantha -> SNT | Thomas -> TMS).
  • Less than 3 consonants then vowels will replace missing characters in the same order they appear (Bob -> BBO | Paula -> PLA).
  • Less than three letters then "X" will take the the third slot after the consonant and the vowel (Al -> LAX).

• Generate 2 numbers, 1 letter and 2 numbers from date of birth and gender:

  • Take the last two digits of the year of birth (1985 -> 85).
  • Generate a letter corresponding to the month of birth (January -> A | December -> T) using the table for conversion included in the code.
  • For males take the day of birth adding one zero at the start if is less than 10 (any 9th day -> 09 | any 20th day -> 20).
  • For females take the day of birth and sum 40 to it (any 9th day -> 49 | any 20th day -> 60).

Examples

fiscal_code({
  "name": "Matt",
  "surname": "Innokodakademija",
  "gender": "M",
  "dob": "1/1/1900"
}) ➞ "DBTMTT00A01"

fiscal_code({
  "name": "Helen",
  "surname": "Yu",
  "gender": "F",
  "dob": "1/12/1950"
}) ➞ "YUXHLN50T41"

fiscal_code({
  "name": "Mickey",
  "surname": "Mouse",
  "gender": "M",
  "dob": "16/1/1928"
}) ➞ "MSOMKY28A16"

Notes

• Code letters must be uppercase.
• Date of birth is given in D/M/YYYY format.
• The conversion table for months is already in the starting code.
• Y is not a vowel.