def TestUniqueCharacters(characters):
    chars = {}
    for character in characters:
        if character not in chars:
            chars[character] = 1
        else:
            return False
    return True

for i in range(30000000):
    TestUniqueCharacters("qwertyuiopasdfghjklzxcvbnm1234567890-=[];',.!@#$%^&*()")

def TestUniqueCharacters(characters):
    chars = set()
    for character in characters:
        if character not in chars:
            chars.add(character)
        else:
            return False
    return True

for i in range(30000000):
    TestUniqueCharacters("qwertyuiopasdfghjklzxcvbnm1234567890-=[];',.!@#$%^&*()")