input: Write a python function to count the number of vowels and consonants in a given string.
  assert findVowelsConsonants("hello") == (2, 3)
  assert findVowelsConsonants("programming") == (3, 8)
  assert findVowelsConsonants("python") == (1, 5)
output: def findVowelsConsonants(s):
      vowels = "aeiouAEIOU"
      num_vowels = sum(1 for char in s if char in vowels)
      num_consonants = sum(1 for char in s if char.isalpha() and char not in vowels)
      return num_vowels, num_consonants