input: Write a python function to generate a random name with the given initials.
  assert len(generate_name("AB")) == 2
  assert len(generate_name("XYZ")) == 3
  assert all(char.islower() for char in generate_name("MNO"))
output: import random
  import string
  
  def generate_name(initials):
      return initials + ''.join(random.choice(string.ascii_lowercase) for _ in range(len(initials)))