## Question

You have *n* streams of sorted object, create a function that will merge them in a
sorted steam.


### example
 
 The 3 bellow sorted streams 
* `[1, 4, 6, 7, 7, 10, ...`
* `[0,  5, 8, 10, ...`
* `[5, 6, 10,...`

Should output `[0, 1, 4, 5, 5, 6, 6, 7, 7, 8, 10, 10, 10, ...`