Node.js Expert, I need your help ( by the way: index.js imports code from encode.js and random.js)

Question 1: How would you modify the index.js file if the two helper JavaScript files were placed in a file structure like below? (helpers, node modules are folders. encode,random, index are files.)

|----------helpers-------| encode.js

-------| random.js

|----------node.modules

|----------index.js