Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
Jason bought a new bookcase that can hold a maximum of 80 pounds of weight. Jason has 70 hardcover books that each weigh half a pound, 30 textbooks that each weigh 2 pounds, and 3 knick-knacks that each weight 6 pounds. How many pounds over the bookcase's weight limit is this total collection of items?

### Response:
 Uzito wa jumla wa vitabu ni vitabu 70 * 1/2 = <<70*1/2=35>>35 pauni.
Uzito wa jumla wa vitabu vya kiada ni vitabu 30 * 2 = <<30*2=60>>60 pauni.
Uzito wa jumla wa vitu vya mapambo ni vitu 3 * 6 = <<3*6=18>>18 pauni.
Uzito wa jumla wa vitu vyote ni pauni 35 + pauni 60 + pauni 18 = <<35+60+18=113>>113 pauni.
Uzito wa jumla zaidi ya kikomo cha uzito wa rafu ni pauni 113 - pauni 80 = <<113-80=33>>33 pauni.