<prompt> GUI inapaswa kuonyesha hesabu na shughuli za hisabati zinazofanywa, na inapaswa pia kuonyesha matokeo ya hesabu. programu inapaswa kushughulikia makosa kama vile mgawanyiko kwa sifuri, na inapaswa kuwa na kazi wazi ya kumruhusu mtumiaji kuanza hesabu mpya.  <response>: Kutumia kifaa cha Description, Text, Description, na Text, Description, Text, Description, Description, Description, Description, Description, Description, Description, Description, Description, Description, Description, Description, Description, Description, Description, Description, Description,Description, Description,Description, Description,Description, Description, Description,Description, Description,Description,Description,Description,Description,Description,Description,Description,Description 