(0 0)
  (1 0)
  (0 1)
  (1 1)
  (0 2)
  (1 2)

  (0 0)
  (1 0)
  (0 1)
  (1 1)
  (0 2)
  (1 2)

  (0 0)
  (0 1)
  (0 2)
  (1 0)
  (1 1)
  (1 2)

 C order : traversal
 i,j = (0 0)
 i,j = (0 1)
 i,j = (0 2)
 i,j = (1 0)
 i,j = (1 1)
 i,j = (1 2)
A = i + 10*j
[[0,10,20]
 [1,11,21]]
 i,j = (0 0)
 i,j = (0 1)
 i,j = (0 2)
 i,j = (1 0)
 i,j = (1 1)
 i,j = (1 2)
A = order of visit 
[[0,1,2]
 [3,4,5]]
 F order : traversal
 i,j = (0 0)
 i,j = (1 0)
 i,j = (0 1)
 i,j = (1 1)
 i,j = (0 2)
 i,j = (1 2)
A = i + 10*j
[[0,10,20]
 [1,11,21]]
 i,j = (0 0)
 i,j = (1 0)
 i,j = (0 1)
 i,j = (1 1)
 i,j = (0 2)
 i,j = (1 2)
Af = order of visit 
[[0,-2,-4]
 [-1,-3,-5]]