Return dict with counts of "upper", "lower", "digit" in a string.
Implement this function:
def count_upper_lower_digit(s: str) -> dict:
Write the function only — the arguments are read for you and the return value is printed automatically.
Arguments arrive as one Python literal per line, in this order: s.
Input
'Hello World 123'
Output
{'upper': 2, 'lower': 8, 'digit': 3}