02,03,04,05,06,07,08,09,13,14,15,16
18,19,21,25,26,27,31,33,39,40,41,43

05,06,08,15,17,19,20,22,23,24,26,27
28,30,32,39,40,42,43,44,46,47,48,49

02,03,06,08,09,12,15,17,21,22,23,25
26,27,28,30,31,33,35,38,40,42,46,47

04,05,06,07,10,11,13,14,17,21,23,24
27,29,31,32,33,34,35,36,39,45,46,48