Imagine you have received a spy’s spreadsheet that uses two columns of data, runs them through a formula, and then outputs the results in a third column. There are hundreds of thousands of rows of data, and the data consists of numbers between -500 and 1,000. The password to protect the cell is effectively unbreakable; it was never written down, was incredibly long, and no one alive today knows what it was. How might you go about figuring out the formula used for column C?

Imagine you have received a spy’s spreadsheet that uses two columns of data, runs them through a formula, and then outputs the results in a third column. There are hundreds of thousands of rows of data, and the data consists of numbers between -500 and 1,000. The password to protect the cell is effectively unbreakable; it was never written down, was incredibly long, and no one alive today knows what it was. How might you go about figuring out the formula used for column C?