[0,11,1,10,100,12,2,20,101,22,3,13,31,103,30,110, 33,4,14,41,104,40,114,24,42,112,21,102,120,201, 210,1000,105,15,5,25,52,115,35,53,113,23,32,121, 44,55,111,51,122,133,144,155,212,221,313,331,414, 441,515,551,1001]