Program language is *Python*, do not use dictionaries

3a. Implement function q3a(string1, string2) so that it returns True if the input strings are the same length and differ at exactly one character position, and returns False otherwise. For example, q3a("bat", "bet") should return True while q3a("art", "rat") and q3a("art", "ran") should both return False.

3b. Implement function q3b(string1, string2) so that it returns a list of the indices, in increasing order, at which string1 and string2 have identical characters. That is, index i should be in the returned list if the ith character of string1 and string2 are the same. For example, q3b("cba", "cb") should return [0, 1] and q3b("bbcz", "Bbxzf") should return [1, 3].

3a. Implement function q3a(string1, string2) so that it returns True if the input strings are the same length and differ at exactly one character position, and returns False otherwise. For example, q3a("bat", "bet") should return True while q3a("art", "rat") and q3a("art", "ran") should both return false. 3b. Implement function q3b(string1, string2) so that it returns a list of the indices, in increasing order, at which stringl and string2 have identical characters. That is, index i should be in the returned list if the ith character of stringl and string2 are the same. For example, q3b("cba", "cb") should return [0, 1] and q3b("bbcz", "Bbxzf") should return [1, 31