Stupid Lost Planet Key problem...PLEASE HELP!!!

So i was trying to install Lost Planet on my comp...it uses steam to run...not a big deal...then it askes me to put the dvd code in the key is like nothing i have ever seen before. it looks like this. XXXXX-XXXXX-XXXXX-X X-XXXXX I am so lost and mad at this game now,...and i think its because im dumb...the code imput boxes for stream looks like this: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX Im so lost and every different way i try it it dosent work. I have even tried zeros for the spaces and it dosent allow me to push space bay t pput spaces there...Im so lost im i suppost to put my steam code in there caues that dosnet make any sense for a completly different game...thanxxx