degree:8
 order:15
[ 8, 2, 4 ][ 4, 6, 2, 0 ]

minimal polynomial:[ x-8, x-1, x+2, x+4 ][ x-2, x+1 ]
[ x-4, x+1 ]

 SITA:
[ [ [ 1, 0, 0, 0 ], [ 0, 1, 0, 0 ], [ 0, 0, 1, 0 ], [ 0, 0, 0, 1 ] ], 
  [ [ 0, 8, 0, 0 ], [ 1, 3, 1, 3 ], [ 0, 4, 0, 4 ], [ 0, 6, 2, 0 ] ], 
  [ [ 0, 0, 2, 0 ], [ 0, 1, 0, 1 ], [ 1, 0, 1, 0 ], [ 0, 2, 0, 0 ] ], 
  [ [ 0, 0, 0, 4 ], [ 0, 3, 1, 0 ], [ 0, 4, 0, 0 ], [ 1, 0, 0, 3 ] ] ]