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

### Instruction:
At a convention, 16 of 36 delegates arrived with pre-printed name badges. Half of the remaining delegates made their own, hand-written name badges. How many delegates were not wearing name badges?

### Response:
 Kulikuwa na 36-16=<<36-16=20>>20 bila vitambulisho vilivyochapishwa mapema.
Kisha 20/2=<<20/2=10>>10 walitengeneza vitambulisho vyao kwa mkono.
Kulikuwa na 20-10=<<20-10=10>>10 bila vitambulisho.