Which comes first, the national anthem or invocation?

@cearn25 (3460)
February 5, 2012 3:12am CST
I am making this program for our Seminar Workshop in my subject Personality Development. I am tasked for this along with the making of video presentations for the National Anthem and Invocation Prayer. In the middle of program-making, I am confused with which should comes first. Is it the National Anthem or Invocation? Thanks in advance mylotters!