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

### Instruction:
 Anna ana kalamu 50 na Harry ana mara mbili ya idadi ya kalamu za Anna lakini alipoteza 19 kati yao. Kalamu ngapi zimebaki na Harry?


### Response:
 Anna ana kalamu 50
Harry ana mara mbili ya idadi ya kalamu za Anna hivyo ana kalamu 50 * 2 = <<50*2=100>>100
Hata hivyo, Harry alipoteza 19 kati yao hivyo amebakiwa na kalamu 100 – 19 = <<100-19=81>>81