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

### Instruction:
Susy goes to a large school with 800 students, while Sarah goes to a smaller school with only 300 students.  At the start of the school year, Susy had 100 social media followers.  She gained 40 new followers in the first week of the school year, half that in the second week, and half of that in the third week.  Sarah only had 50 social media followers at the start of the year, but she gained 90 new followers the first week, a third of that in the second week, and a third of that in the third week.  After three weeks, how many social media followers did the girl with the most total followers have?

### Response:
 Baada ya wiki moja, Susy ana wafuasi 100+40 = <<100+40=140>>140.
Katika wiki ya pili, Susy anaongeza wafuasi 40/2 = <<40/2=20>>20.
Katika wiki ya tatu, Susy anaongeza wafuasi 20/2 = <<20/2=10>>10.
Jumla, Susy anamaliza wiki tatu na jumla ya wafuasi 140+20+10 = <<140+20+10=170>>170.
Baada ya wiki moja, Sarah ana wafuasi 50+90 = <<50+90=140>>140.
Baada ya wiki ya pili, Sarah anaongeza wafuasi 90/3 = <<90/3=30>>30.
Baada ya wiki ya tatu, Sarah anaongeza wafuasi 30/3 = <<30/3=10>>10.
Hivyo, Sarah anamaliza wiki tatu na jumla ya wafuasi 140+30+10 = <<140+30+10=180>>180.
Hivyo, Sarah ndiye msichana mwenye wafuasi wengi zaidi na jumla ya 180.