import random
def generate_guangan_phone():
prefixes = [
'1398260', '1838260', '1838261', '1838262', '1838263', '1838264',
'1838265', '1838266', '1838267', '1838268', '1838269', '1980826',
'1598348', '1338260', '1538260', '1808260', '1898260', '1308260',
'1318260', '1328260', '1558260', '1858260'
]
prefix = random.choice(prefixes)
suffix = ''.join(random.choices('0123456789', k=4))
return prefix + suffix
phone_numbers = [generate_guangan_phone() for _ in range(6000)]
for i, num in enumerate(phone_numbers, 1):
print(f"{i}. {num}")