The output from the large AI model:
The identity card number (ID number) has different structures and generation rules in different countries. The following is a brief description of the structure of ID numbers in some countries and how to generate these numbers through programming.
### 1. Chinese ID number
**structure**：
-18 digits
-The first 6 digits: address code (province, city, county)
-7th-14th place: date of birth (YYYYMMDD)
-Digits 15-17: Sequence code (indicating different persons under the same address code, odd numbers are male and even numbers are female)
-18th digit: check code (calculated from the first 17 digits)
**Generation method**：
```python
import random
def generate_chinese_id():
# Generate the first 6-digit address code (assuming 110000, indicating Beijing)
address_code = '110000'
# Generate date of birth (1980-01-01 to 2000-12-31)
year = random. randint(1980, 2000)
month = random. randint(1, 12)
day = random. randint(1, 28)# Simplify processing, regardless of leap years
birth_date = f"{year:04d}{month:02d}{day:02d}"
# Generate sequence code (3 digits)
sequence_code = f"{random. randint(0, 999):03d}"
# Generate the first 17 digits
id_17 = address_code + birth_date + sequence_code
# Calculate the check code
weights = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2]
check_code_map = {0: '1', 1: '0', 2: 'X', 3: '9', 4: '8', 5: '7', 6: '6', 7: '5', 8: '4', 9: '3', 10: '2'}
total = sum(int(id_17[i]) * weights[i] for i in range(17))
check_code = check_code_map[total % 11]
# Return the complete ID number
return id_17 + check_code
print(generate_chinese_id())
```
### 2. U.S. Social Security Number (SSN)
**structure**：
-9 digits, the format is` 'AAA-GG-SSSS`
-AAA: Area code (001-899)
-GG: Group number (01-99)
-SSSS: Sequence number (0001-9999)
**Generation method**：
```python
import random
def generate_ssn():
# Generate area number (001-899)
area = random. randint(1, 899)
# Generate group number (01-99)
group = random. randint(1, 99)
# Generate sequence number (0001-9999)
serial = random. randint(1, 9999)
# Format SSN
ssn = f"{area:03d}-{group:02d}-{serial:04d}"
return ssn
print(generate_ssn())
```
### 3. British National Insurance Number (NINO)
**structure**：
-9 characters, the format is` 'AA 12 34 56 A`
-The first two digits: letters (excluding O, I, Q, U, V)
-Middle six digits: number
-Last digit: letter (A, B, C, D)
**Generation method**：
```python
import random
import string
def generate_nino():
# Generate the first two letters (exclude O, I, Q, U, V)
letters = [c for c in string. ascii_uppercase if c not in ['O', 'I', 'Q', 'U', 'V']]
prefix = ''. join(random. choices(letters, k=2))
# Generate the middle six digits
numbers = ''. join(random. choices(string. digits, k=6))
# Generate the last letter (A, B, C, D)
suffix = random. choice(['A', 'B', 'C', 'D'])
# Format NINO
nino = f"{prefix} {numbers[:2]} {numbers[2:4]} {numbers[4:6]} {suffix}"
return nino
print(generate_nino())
```
### 4. India Permanent Account Number (PAN)
**structure**：
-10 characters, the format is: 'AAAAA9999A`
-The first five digits: letters (usually represent the last name or company name)
-The next four