degree:20
 order:56
[ 20, 5, 30 ][ 4, 8, 2, 0 ]

minimal polynomial:[ x-20, x-4, x^2+4*x-4 ][ x-5, x+3, x^2-2*x-1 ]
[ x-30, x+2, x^2-18 ]

 SITA:
[ [ [ 1, 0, 0, 0 ], [ 0, 1, 0, 0 ], [ 0, 0, 1, 0 ], [ 0, 0, 0, 1 ] ], 
  [ [ 0, 20, 0, 0 ], [ 1, 6, 1, 12 ], [ 0, 4, 4, 12 ], [ 0, 8, 2, 10 ] ], 
  [ [ 0, 0, 5, 0 ], [ 0, 1, 1, 3 ], [ 1, 4, 0, 0 ], [ 0, 2, 0, 3 ] ], 
  [ [ 0, 0, 0, 30 ], [ 0, 12, 3, 15 ], [ 0, 12, 0, 18 ], [ 1, 10, 3, 16 ] ] ]