'''
Given an alphabetic string s, return a string where all vowels are removed and a . is inserted before each remaining letter, and make everything lowercase.

Vowels are letters A, O, Y, E, U, I, and the rest are consonants.

Example 1
Input:
hello
Output:
.h.l.l

Example 2
Input:
Codefinity
Output:
.c.d.f.n.t

'''
class Solution(object):
    def solve(self, s:str) -> str:
        print(f"s: {s}")
        s_lower = s.lower()
        vowels = ("aeiouy")
        result = ""
        for c in s_lower:
            if c not in vowels:
                result += '.' + c
        return result

s = Solution()
# Example usage
print(s.solve("HeLlo"))  # Output: .h.l.l
print(s.solve("Codefinity"))  # Output: .c.d.f.n.t