def fibonacci(n):
    if n in (1, 2):
        return 1
    return fibonacci(n-1) + fibonacci(n-2)

def is_palindrome(str):
    str = str.replace(" ", "")
    str = str.lower()
    reversed_str = ''.join(reversed(str))
    if str == reversed_str:
        return True
    else:
        return False