Count the Letters and Digits

Write a function that takes a string and calculates the number of letters and digits within it. Return the result in a dictionary.

Examples

count_all("Hello World") ➞ { "LETTERS":  10, "DIGITS": 0 }

count_all("H3ll0 Wor1d") ➞ { "LETTERS":  7, "DIGITS": 3 }

count_all("149990") ➞ { "LETTERS": 0, "DIGITS": 6 }

Notes

• Tests contain only alphanumeric characters.
• Spaces are not letters.
• All tests contain valid strings.