def equal_string_modulo_digits(s1, s2):
    """Returns whether two strings without their digits are the same
    """
    s1 = (c for c in s1 if not c.isdigit())
    s2 = (c for c in s2 if not c.isdigit())

    return all(c1 == c2 for c1, c2 in zip(s1, s2))