I accidentally printed out two copies of my six flags ticket?

I am going to six flags St. Louis today and I am worried. I accidentally printed out two copies of my ticket when I bought it online. Will it matter which one I use and will they think that it is an illegal duplication? I am worried I won't be able to get into the park. One ticket says my first and I thought I had to put my full name, so I printed another one with my full name.