[0,1,2,3,4,5,6,7,8,9]
[10,11,12,13,14,15,16,17,18,19]
[10,12,14,16,18,20,22,24,26,28]
[20,22,24,26,28,30,32,34,36,38]
[0,10,10,10,10,10,10,10,10,10]