01,02,03,05,06,08,10,11,12,14,15,16,18,19,21,22,23,24,25,26,27,28,29,30,34,35,36,38,39,40,41,42,43,44,45,46
01,02,04,05,07,08,10,11,13,14,15,16,17,18,19,21,23,24,26,27,28,30,31,33,34,35,36,37,40,43,44,45,46,47,48,49
01,03,04,06,07,08,09,11,12,13,14,15,16,19,20,21,22,23,24,27,28,29,30,31,36,37,38,39,40,41,43,44,45,46,48,49