01,04,05,06,08,09,14,15,17,19,25,26
27,29,30,31,33,35,44,45,46,47,48,49

01,03,04,08,09,11,12,15,16,17,19,25
28,29,31,32,35,38,40,41,43,44,45,48

03,04,06,07,13,15,18,20,24,25,28,29
30,32,34,35,37,38,39,41,42,46,47,49

01,02,08,14,15,16,19,20,21,22,25,28