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

### Instruction:
A hay farmer harvested 560 bales of hay from 5 acres of grass per month last year. This year, he planted an additional 7 acres of grass. If the farmer also owns 9 horses and each horse consumes 3 bales of hay a day, how many bales of hay would the farmer have left by the end of December if he starts feeding them this year's hay beginning the first day of September?

### Response:
 Kwa kila ekari ya nyasi, mkulima anaweza kuvuna makasha 560/5 = <<560/5=112>>112 ya majani ya nyasi kila mwezi.
Mwaka huu, mkulima ana ekari 7 + 5 = <<7+5=12>>12 za nyasi.
Anaweza kutarajia kuvuna makasha 12 x 112 = <<12*112=1344>>1344 ya majani ya nyasi kwa mwezi.
Uzalishaji jumla wa majani ya nyasi mwaka huu ni 1344 x 12 = <<1344*12=16128>>16128.
Kuanzia Septemba hadi Desemba, mkulima atalazimika kuwalisha farasi wake kwa jumla ya siku 30 + 31 + 30 + 31 = <<30+31+30+31=122>>122.
Kila siku farasi wake hula jumla ya makasha 3 x 9 = <<3*9=27>>27 ya majani ya nyasi.
Kwa siku hizo 122, farasi watahula jumla ya makasha 27 x 122 = <<27*122=3294>>3294.
Jumla ya makasha yaliyobaki itakuwa 16128 - 3294 = <<16128-3294=12834>>12834.