4107d960_II_Arbitrarily_Large_Data__Question
[Answer] Find a function in BSL that combines the values. Or, if that doesn’t work, make a wish for a helper function. For many functions, this last step is straightforward. The purpose, the examples, and the template together tell you which function or expression “combines” the available values into the proper result. We refer to this function or expression as combinator, slightly abusing existing terminology. [Question] 
How can the function combine these values to get the desired answer?
II Arbitrarily Large Data