[0,1,2,3,4,5,6,9,7,10,8,11,12,13,14,15,18,27,16, 19,28,17,20,21,29,30,22,31,23,24,32,33,36,25,34, 37,26,35,38,39,40,41,42,45,54,81,43,46,55,82,44, 47,48,56,57,83,84,49,58,85,50,51,59,60,63,86,87, 90]