Brennan hosts a podcast about computers, and Zane hosts a podcast about parenting. Both podcasts have a set duration for each episode. Last year, Brennan released 12 episodes and Zane released 12 episodes, for a total of 3,036 minutes of content. This year, Brennan released 23 episodes and Zane released 31 episodes, which lasted a total of 7,155 minutes. How long is each episode?