<prompt> Kutokana na idadi kamili num, mara kwa mara kuongeza tarakimu zake zote mpaka matokeo ina tarakimu moja tu, na kurudi ni: 38 -- 3 8 -- 11 11 -- 1 1 -- 2  <response>: To solve this problem, you can use a loop to keep adding the digits of the number until the sum is a single digit. Heres one way to implement it in Python:def add_digitsnum: while num 10: digit_sum 0 while num 0: digit_sum num 10 num 10 num digit_sum return numThe outer loop keeps running as long as the number has more than one digit. The inner loop adds up the digits of the number using the modulo operator and integer division. Finally, the result is returned once the sum is a single digit. Note that there may be other, possibly more elegant solutions to this problem. 