GramADE:=rec(
  A1 := [ [ -2 ] ],
  A2 := [ [ -2, 1 ], [ 1, -2 ] ],
  A3 := [ [ -2, 1, 0 ], [ 1, -2, 1 ], [ 0, 1, -2 ] ],
  A4 := [ [ -2, 1, 0, 0 ], [ 1, -2, 1, 0 ], [ 0, 1, -2, 1 ], [ 0, 0, 1, -2 ] ],
  A5 := [ [ -2, 1, 0, 0, 0 ], [ 1, -2, 1, 0, 0 ], [ 0, 1, -2, 1, 0 ], [ 0, 0, 1, -2, 1 ], [ 0, 0, 0, 1, -2 ] ],
  A6 := [ [ -2, 1, 0, 0, 0, 0 ], [ 1, -2, 1, 0, 0, 0 ], [ 0, 1, -2, 1, 0, 0 ], [ 0, 0, 1, -2, 1, 0 ], [ 0, 0, 0, 1, -2, 1 ], 
      [ 0, 0, 0, 0, 1, -2 ] ],
  A7 := [ [ -2, 1, 0, 0, 0, 0, 0 ], [ 1, -2, 1, 0, 0, 0, 0 ], [ 0, 1, -2, 1, 0, 0, 0 ], [ 0, 0, 1, -2, 1, 0, 0 ], [ 0, 0, 0, 1, -2, 1, 0 ], 
      [ 0, 0, 0, 0, 1, -2, 1 ], [ 0, 0, 0, 0, 0, 1, -2 ] ],
  A8 := [ [ -2, 1, 0, 0, 0, 0, 0, 0 ], [ 1, -2, 1, 0, 0, 0, 0, 0 ], [ 0, 1, -2, 1, 0, 0, 0, 0 ], [ 0, 0, 1, -2, 1, 0, 0, 0 ], 
      [ 0, 0, 0, 1, -2, 1, 0, 0 ], [ 0, 0, 0, 0, 1, -2, 1, 0 ], [ 0, 0, 0, 0, 0, 1, -2, 1 ], [ 0, 0, 0, 0, 0, 0, 1, -2 ] ],
  A9 := [ [ -2, 1, 0, 0, 0, 0, 0, 0, 0 ], [ 1, -2, 1, 0, 0, 0, 0, 0, 0 ], [ 0, 1, -2, 1, 0, 0, 0, 0, 0 ], [ 0, 0, 1, -2, 1, 0, 0, 0, 0 ], 
      [ 0, 0, 0, 1, -2, 1, 0, 0, 0 ], [ 0, 0, 0, 0, 1, -2, 1, 0, 0 ], [ 0, 0, 0, 0, 0, 1, -2, 1, 0 ], [ 0, 0, 0, 0, 0, 0, 1, -2, 1 ], 
      [ 0, 0, 0, 0, 0, 0, 0, 1, -2 ] ],
  D4 := [ [ -2, 0, 1, 0 ], [ 0, -2, 1, 0 ], [ 1, 1, -2, 1 ], [ 0, 0, 1, -2 ] ],
  D5 := [ [ -2, 0, 1, 0, 0 ], [ 0, -2, 1, 0, 0 ], [ 1, 1, -2, 1, 0 ], [ 0, 0, 1, -2, 1 ], [ 0, 0, 0, 1, -2 ] ],
  D6 := [ [ -2, 0, 1, 0, 0, 0 ], [ 0, -2, 1, 0, 0, 0 ], [ 1, 1, -2, 1, 0, 0 ], [ 0, 0, 1, -2, 1, 0 ], [ 0, 0, 0, 1, -2, 1 ], 
      [ 0, 0, 0, 0, 1, -2 ] ],
  D7 := [ [ -2, 0, 1, 0, 0, 0, 0 ], [ 0, -2, 1, 0, 0, 0, 0 ], [ 1, 1, -2, 1, 0, 0, 0 ], [ 0, 0, 1, -2, 1, 0, 0 ], [ 0, 0, 0, 1, -2, 1, 0 ], 
      [ 0, 0, 0, 0, 1, -2, 1 ], [ 0, 0, 0, 0, 0, 1, -2 ] ],
  D8 := [ [ -2, 0, 1, 0, 0, 0, 0, 0 ], [ 0, -2, 1, 0, 0, 0, 0, 0 ], [ 1, 1, -2, 1, 0, 0, 0, 0 ], [ 0, 0, 1, -2, 1, 0, 0, 0 ], 
      [ 0, 0, 0, 1, -2, 1, 0, 0 ], [ 0, 0, 0, 0, 1, -2, 1, 0 ], [ 0, 0, 0, 0, 0, 1, -2, 1 ], [ 0, 0, 0, 0, 0, 0, 1, -2 ] ],
  D9 := [ [ -2, 0, 1, 0, 0, 0, 0, 0, 0 ], [ 0, -2, 1, 0, 0, 0, 0, 0, 0 ], [ 1, 1, -2, 1, 0, 0, 0, 0, 0 ], [ 0, 0, 1, -2, 1, 0, 0, 0, 0 ], 
      [ 0, 0, 0, 1, -2, 1, 0, 0, 0 ], [ 0, 0, 0, 0, 1, -2, 1, 0, 0 ], [ 0, 0, 0, 0, 0, 1, -2, 1, 0 ], [ 0, 0, 0, 0, 0, 0, 1, -2, 1 ], 
      [ 0, 0, 0, 0, 0, 0, 0, 1, -2 ] ],
  E6 := [ [ -2, 0, 0, 1, 0, 0 ], [ 0, -2, 1, 0, 0, 0 ], [ 0, 1, -2, 1, 0, 0 ], [ 1, 0, 1, -2, 1, 0 ], [ 0, 0, 0, 1, -2, 1 ], 
      [ 0, 0, 0, 0, 1, -2 ] ],
  E7 := [ [ -2, 0, 0, 1, 0, 0, 0 ], [ 0, -2, 1, 0, 0, 0, 0 ], [ 0, 1, -2, 1, 0, 0, 0 ], [ 1, 0, 1, -2, 1, 0, 0 ], [ 0, 0, 0, 1, -2, 1, 0 ], 
      [ 0, 0, 0, 0, 1, -2, 1 ], [ 0, 0, 0, 0, 0, 1, -2 ] ],
  E8 := [ [ -2, 0, 0, 1, 0, 0, 0, 0 ], [ 0, -2, 1, 0, 0, 0, 0, 0 ], [ 0, 1, -2, 1, 0, 0, 0, 0 ], [ 1, 0, 1, -2, 1, 0, 0, 0 ], 
      [ 0, 0, 0, 1, -2, 1, 0, 0 ], [ 0, 0, 0, 0, 1, -2, 1, 0 ], [ 0, 0, 0, 0, 0, 1, -2, 1 ], [ 0, 0, 0, 0, 0, 0, 1, -2 ] ] );