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

### Instruction:
Reggie is playing marbles with his friend. His friend arrives with 100 marbles. Each game, they bet ten marbles and whoever wins gets to keep all the marbles. After 9 games, Reggie has 90 marbles. How many games has he lost?

### Response:
 Kwa kuwa Reggie ana mabano 90, basi Reggie na rafiki yake wamecheza michezo 100 - 90 = <<100-90=10>>10.
Kwa kuwa beti ni mabano 10, basi Reggie amepoteza 10 - 9 = <<10-9=1>>1 mchezo.