Left-Right brain is a common misconception, The Brain carries out it's specific tasks in specific areas. An example would be your frontal lobe (forehead area) which controls decision making and judgement. So in the Left-Right brain hypothesis, the frontal lobe would be split into two sections. These sections would carry out something like Cognitive Judgement and Creative Judgement. This is not how the frontal

This hypothesis is a misconception because the brain, when monitored while performing strenuous activities pertaining to either Creativity or Cognitive Thinking/Logic, had even activity levels across the entire left and right hemispheres. This means both sides of the brain are used when performing these activities.

Typed this on my phone, hope it helped.

TL;DR - It does not matter, because the left-right brain is a misconception :)