x : [_][8]
x = [1,2,3,4,5,19,12,38,5,3]

y : [_][8]
y = [19,3,27,5,12]

z = x # y

m = z @ (0 : [1]) //1
w = z @ 2 //3

t = z @ 10 //19 (0x13)
v = z @ 11 //3