Given that $591{,}3d8$ is divisible by 12, what is the sum of all of the digits that could replace $d$?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Given that $591{,}3d8$ is divisible by 12, what is the sum of all of the digits that could replace $d$?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
4
Given that $591{,}3d8$ is divisible by 12, what is the sum of all of the digits that could replace $d$?
train