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

### Instruction:
A large gathering occurred at the town hall with 200 people participating. 100 people decided to have a snack, and then 20 new outsiders joined in to have a snack. Half of these snack eaters got full and left. 10 new outsiders came to have snacks, too. 30 more snack eaters got their fill and left. Then half of the remaining snack eaters left later on. How many snack eaters are left?

### Response:
 Kuanzia mwanzo, watu 100 waliamua kula vitafunio, na watu 20 wapya waliungana nao, hivyo jumla ya watu 100+20= <<100+20=120>>120 walikuwa wanakula vitafunio.
120/2= <<120/2=60>>60 watu walishiba na kuondoka.
Watu 10 wapya waliungana nao kula vitafunio, hivyo 60+10= 70 watu walikuwa wanakula vitafunio.
Baada ya watu 30 kuondoka, waliosalia walikuwa 70-30=<<70-30=40>>40 waliokuwa wanakula vitafunio.
Mwishowe, watu 40/2=<<40/2=20>>20 tu ndio waliosalia wakiendelea kula.