def a_or_c(grade):
    """
    We all know the saying "C's get degrees".
    We all would like to get an A, but sometimes
    a C will have to do. 

    Return whether the grade inputted
    would receive an A or C.

    >>> a_or_c(100)
    True
    >>> a_or_c(75)
    True
    >>> a_or_c(82)
    False
    >>> a_or_c(80)
    False
    >>> a_or_c(95)
    True
    >>> a_or_c(40)
    False
    """
    return(90<=grade<=100) or (70<= grade <=79)