In this, you have to count up or down, starting at 50.
Gryffindor - Add 1
Slytherin - Add 3
Hufflepuff - Subtract 1
Ravenclaw - Subtract 3
Gryffindor and Slytherin win if they count up and make it to 100.
Hufflepuff and Ravenclaw win if they count down and make it to 0.
Don't lie about your house!
Starting now!
50