$(function(){

  'use strict';

  var card_data = [];

  for ( var i_1 = 11 ; i_1 <= 18 ; i_1++ ){
    
    for ( var i_2 = 2 + ( i_1 - 11 ) ; i_2 <= 9 ; i_2++ ){

      card_data.push({
        front: [ i_1, i_2 ], 
        back: i_1 - i_2
      });
    }
  }

  var card = new CalcCard({
    card_data : card_data,
    order_type : 'asc'
  });

  var control = new CalcControl(card);

});