what is the input,if the output is 17?

More data needed.

blalalallllaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

HELP ME !!!

To determine the input for an output of 17, we need more context. The input and output values depend on the specific equation, function, or system we are working with. Without additional information, it is not possible to provide a specific answer.

Please provide more details about the context, such as the equation, function, or system you are referring to.