2009 boxes with small balls are arranged in a row from left to right. If there are 13 small balls in the leftmost box, and there are 50 small balls in every 8 adjacent boxes, then there are How many small balls.
放有小球的2009个盒子从左到右排成一行，如果最左边的盒子里有13个小球，且每8个相邻的盒子里共有50个小球，那么最右边的盒子里有多少个小球．
<result>13</result>