(16, 24)
          ( 8 )

(18, 9)
          (    )

(14, 63)
          (    )

(42, 12)
          (    )

(56, 49)
          (    )

(48, 30)
          (    )

(66, 55)
          (    )

(6, 54)
          (    )

(72, 27)
          (    )

        +[    ]

(88, 99)
          (    )

(20, 70)
          (    )

(12, 27)
          (    )

(28, 36)
          (    )

(18, 30)
          (    )

(9, 21)
          (    )

(54, 24)
          (    )

(18, 15)
          (    )

(12, 6)
          (    )

        +[    ]

(48, 56)
          (    )

(90, 80)
          (    )

(48, 18)
          (    )

(10, 5)
          (    )

(25, 20)
          (    )

(4, 24)
          (    )

(14, 10)
          (    )

(70, 60)
          (    )

(55, 22)
          (    )

        +[    ]

(27, 45)
          (    )

(42, 49)
          (    )

(48, 18)
          (    )

(18, 3)
          (    )

(12, 32)
          (    )

(6, 27)
          (    )

(70, 60)
          (    )

(72, 64)
          (    )

(12, 10)
          (    )

        +[    ]

(8, 24)
          (    )

(9, 81)
          (    )

(60, 10)
          (    )

(10, 45)
          (    )

(18, 45)
          (    )

(36, 63)
          (    )

(28, 8)
          (    )

(40, 15)
          (    )

(48, 18)
          (    )

        +[    ]

  ++[[       ]]

(16, 24)
          ( 8 )
(18, 9)
          ( 9 )
(14, 63)
          ( 7 )
(42, 12)
          ( 6 )
(56, 49)
          ( 7 )
(48, 30)
          ( 6 )
(66, 55)
          ( 11 )
(6, 54)
          ( 6 )
(72, 27)
          ( 9 )
        +[    ]

(88, 99)
          ( 11 )
(20, 70)
          ( 10 )
(12, 27)
          ( 3 )
(28, 36)
          ( 4 )
(18, 30)
          ( 6 )
(9, 21)
          ( 3 )
(54, 24)
          ( 6 )
(18, 15)
          ( 3 )
(12, 6)
          ( 6 )
        +[    ]

(48, 56)
          ( 8 )
(90, 80)
          ( 10 )
(48, 18)
          ( 6 )
(10, 5)
          ( 5 )
(25, 20)
          ( 5 )
(4, 24)
          ( 4 )
(14, 10)
          ( 2 )
(70, 60)
          ( 10 )
(55, 22)
          ( 11 )
        +[    ]

(27, 45)
          ( 9 )
(42, 49)
          ( 7 )
(48, 18)
          ( 6 )
(18, 3)
          ( 3 )
(12, 32)
          ( 4 )
(6, 27)
          ( 3 )
(70, 60)
          ( 10 )
(72, 64)
          ( 8 )
(12, 10)
          ( 2 )
        +[    ]

(8, 24)
          ( 8 )
(9, 81)
          ( 9 )
(60, 10)
          ( 10 )
(10, 45)
          ( 5 )
(18, 45)
          ( 9 )
(36, 63)
          ( 9 )
(28, 8)
          ( 4 )
(40, 15)
          ( 5 )
(48, 18)
          ( 6 )
        +[    ]

  ++[[       ]]