CodeGolf - Ignore the noise #1 Instructions

Barry is a not so good backend developer in charge of a small API that should give you information about purchases made in a client's shop. However, he hasn't done a great job and your boss tells you to fix it client-side instead. Ideally you should receive comma-separated values such as 927,2,45,90 which correspond to something like item_id,item_amount,unit_price,total

In this first puzzle we only care about item_id and item_amount but we need the other fields in place to present the problem. Barry sometimes gets things mixed up and returns noise as part of the output, he also gets the order wrong, returning noise, noise, unit_price, total, item_id, item_amount.

Your Task

You need to store in a map (or similar structure) the pairs of item_id and item_amount regardless of whether Barry returns them correctly or not and print each element in a new line in the least number of characters possible. (Storing is not mandatory, we just care about the output)

Sample input (mixed correct and messy formats)

103,2,50,100
106,1,900,900
459,40,150,300,67,2
4,20,30,6000


In other words input will be either a,b,x,x or x,x,x,x,a,b where what we care about is a &amp; b. You need to provide code assuming we have a variable called G (or any other name) with all the lines of csv.

Sample output

103,2
106,1
67,2 //This one was messy
4,20


Tolerance

There is a certain margin for tolerance when it comes to the answer. Answers in similar formats but adhering to the correct values, will also be accepted. Formats like [a,b],(a,b) or {a,b} are valid, but a,b is preferred.


  Although the first puzzle had mixed acceptance due to the fact that it
  was easy and fast to solve, I also felt that some people liked that
  too. So I'm going to continue making quickgolfs for now
Pyth, 10 bytes

FNG&lt;.&lt;N4 2


Try it online: Pyth Compiler/Executor 

(The first 4 chars =G.Q reads all the data and stores it in G)

Explanation

FNG              for row N in G:
    .&lt;N4            cyclic leftshift by 4
   &lt;     2          print the first two elements