(3, 6)
          ( 3 )

(40, 32)
          (    )

(48, 54)
          (    )

(14, 7)
          (    )

(54, 6)
          (    )

(72, 64)
          (    )

(28, 35)
          (    )

(24, 28)
          (    )

(18, 14)
          (    )

        +[    ]

(8, 8)
          (    )

(70, 40)
          (    )

(72, 63)
          (    )

(63, 81)
          (    )

(12, 4)
          (    )

(4, 24)
          (    )

(20, 35)
          (    )

(14, 10)
          (    )

(40, 5)
          (    )

        +[    ]

(18, 3)
          (    )

(18, 10)
          (    )

(15, 10)
          (    )

(56, 49)
          (    )

(36, 45)
          (    )

(35, 21)
          (    )

(25, 15)
          (    )

(63, 36)
          (    )

(12, 28)
          (    )

        +[    ]

(16, 6)
          (    )

(60, 50)
          (    )

(2, 18)
          (    )

(7, 14)
          (    )

(32, 24)
          (    )

(9, 45)
          (    )

(18, 63)
          (    )

(63, 14)
          (    )

(27, 24)
          (    )

        +[    ]

(80, 70)
          (    )

(42, 35)
          (    )

(35, 49)
          (    )

(28, 63)
          (    )

(30, 50)
          (    )

(24, 3)
          (    )

(18, 21)
          (    )

(28, 49)
          (    )

(20, 4)
          (    )

        +[    ]

  ++[[       ]]

(3, 6)
          ( 3 )
(40, 32)
          ( 8 )
(48, 54)
          ( 6 )
(14, 7)
          ( 7 )
(54, 6)
          ( 6 )
(72, 64)
          ( 8 )
(28, 35)
          ( 7 )
(24, 28)
          ( 4 )
(18, 14)
          ( 2 )
        +[    ]

(8, 8)
          ( 8 )
(70, 40)
          ( 10 )
(72, 63)
          ( 9 )
(63, 81)
          ( 9 )
(12, 4)
          ( 4 )
(4, 24)
          ( 4 )
(20, 35)
          ( 5 )
(14, 10)
          ( 2 )
(40, 5)
          ( 5 )
        +[    ]

(18, 3)
          ( 3 )
(18, 10)
          ( 2 )
(15, 10)
          ( 5 )
(56, 49)
          ( 7 )
(36, 45)
          ( 9 )
(35, 21)
          ( 7 )
(25, 15)
          ( 5 )
(63, 36)
          ( 9 )
(12, 28)
          ( 4 )
        +[    ]

(16, 6)
          ( 2 )
(60, 50)
          ( 10 )
(2, 18)
          ( 2 )
(7, 14)
          ( 7 )
(32, 24)
          ( 8 )
(9, 45)
          ( 9 )
(18, 63)
          ( 9 )
(63, 14)
          ( 7 )
(27, 24)
          ( 3 )
        +[    ]

(80, 70)
          ( 10 )
(42, 35)
          ( 7 )
(35, 49)
          ( 7 )
(28, 63)
          ( 7 )
(30, 50)
          ( 10 )
(24, 3)
          ( 3 )
(18, 21)
          ( 3 )
(28, 49)
          ( 7 )
(20, 4)
          ( 4 )
        +[    ]

  ++[[       ]]