How do you play the national lottery in Costa Rica?

I bought a ticket and I don't know how to check my numbers on a href="http://www.jps.go.cr/premios3.cfm." rel="nofollow"http://www.jps.go.cr/premios3.cfm./a It asks for the sort number (this number is clearly defined), the number? (i have no idea if that is the number in the bottom right corner or the number next to the serial number), the serial number( which i think is on the left side of the ticket), and fraciones (i have no idea what this is(. can anyone enlighten me?