20,21,21,22,22,23,23,24,24,25,26,26,27,28,29,29,30,31,32,32,33,34,35,35,36,37,37,38,38,38,38,38,37,37,36,36,35,35,34,34,33,32,32,31,31,30,29,29,28,27,27,26,25,25,24,23,22,22,22,21,21,21,21,21,21,21,20,20,20,20;506,506,505,505,504,504,503,503,502,502,502,501,501,501,501,500,500,500,500,501,501,501,501,502,502,502,503,503,504,505,506,507,507,508,508,509,509,510,510,511,511,511,512,512,513,513,513,514,514,514,515,515,515,516,516,516,516,515,514,514,513,512,511,510,509,508,508,507,506,506