1. Generate the submission file for Avazu:
    Assume you have the following two prediction files for ''avazue-app'' and ''avazue-site'':
    a. avazu-site.prediction
    b. avazu-app.prediction

    1) Type:

        ./gen_avazu_sub.sh avazu-app.prediction avazu-site.prediction avazu-sub

    2) Then there will be a submisson file ``avazu-sub.prd''

    NOTE: please put the prediction file of ''avazu-app'' before that of ``avazu-site''
