<prompt> Programu ya C inapaswa kuwa na interface ya mtumiaji-kirafiki ambayo inamuomba mtumiaji kwa pembejeo na inaonyesha pato katika muundo sawa na pembejeo. Programu pia inapaswa kushughulikia makosa ya pembejeo kama vile muundo wa pembejeo usio halali au mgawanyiko kwa sifuri.  <response>: Furthermore, Im not sure if its a good idea to do the same, but I think its a good idea to do it, because I think its a good idea to do it. 