A list of city names is entered in one line separated by a space. Determine that all cities in this list are more than 5 characters long. Implement the program using a while loop and a break statement. Print YES if the condition is met and NO otherwise.

def my_func(a):
  c = len(a)
  while c > 0:
    if c < 5:
      print('NO')
      break
    elif c >= 5:
      print('YES')
      break
    c -= 1
my_func('A')