(60, 10)
          ( 10 )

(45, 27)
          (    )

(24, 21)
          (    )

(81, 36)
          (    )

(8, 2)
          (    )

(12, 8)
          (    )

(10, 8)
          (    )

(42, 35)
          (    )

(2, 16)
          (    )

        +[    ]

(15, 25)
          (    )

(2, 10)
          (    )

(21, 28)
          (    )

(15, 24)
          (    )

(4, 2)
          (    )

(14, 16)
          (    )

(64, 8)
          (    )

(15, 27)
          (    )

(12, 2)
          (    )

        +[    ]

(54, 45)
          (    )

(8, 32)
          (    )

(36, 16)
          (    )

(48, 54)
          (    )

(24, 56)
          (    )

(28, 7)
          (    )

(64, 40)
          (    )

(36, 28)
          (    )

(6, 24)
          (    )

        +[    ]

(18, 2)
          (    )

(33, 11)
          (    )

(20, 10)
          (    )

(33, 22)
          (    )

(54, 12)
          (    )

(20, 30)
          (    )

(24, 30)
          (    )

(81, 9)
          (    )

(27, 12)
          (    )

        +[    ]

(60, 10)
          (    )

(72, 8)
          (    )

(10, 35)
          (    )

(48, 56)
          (    )

(3, 24)
          (    )

(10, 14)
          (    )

(16, 10)
          (    )

(24, 64)
          (    )

(6, 24)
          (    )

        +[    ]

  ++[[       ]]

(60, 10)
          ( 10 )
(45, 27)
          ( 9 )
(24, 21)
          ( 3 )
(81, 36)
          ( 9 )
(8, 2)
          ( 2 )
(12, 8)
          ( 4 )
(10, 8)
          ( 2 )
(42, 35)
          ( 7 )
(2, 16)
          ( 2 )
        +[    ]

(15, 25)
          ( 5 )
(2, 10)
          ( 2 )
(21, 28)
          ( 7 )
(15, 24)
          ( 3 )
(4, 2)
          ( 2 )
(14, 16)
          ( 2 )
(64, 8)
          ( 8 )
(15, 27)
          ( 3 )
(12, 2)
          ( 2 )
        +[    ]

(54, 45)
          ( 9 )
(8, 32)
          ( 8 )
(36, 16)
          ( 4 )
(48, 54)
          ( 6 )
(24, 56)
          ( 8 )
(28, 7)
          ( 7 )
(64, 40)
          ( 8 )
(36, 28)
          ( 4 )
(6, 24)
          ( 6 )
        +[    ]

(18, 2)
          ( 2 )
(33, 11)
          ( 11 )
(20, 10)
          ( 10 )
(33, 22)
          ( 11 )
(54, 12)
          ( 6 )
(20, 30)
          ( 10 )
(24, 30)
          ( 6 )
(81, 9)
          ( 9 )
(27, 12)
          ( 3 )
        +[    ]

(60, 10)
          ( 10 )
(72, 8)
          ( 8 )
(10, 35)
          ( 5 )
(48, 56)
          ( 8 )
(3, 24)
          ( 3 )
(10, 14)
          ( 2 )
(16, 10)
          ( 2 )
(24, 64)
          ( 8 )
(6, 24)
          ( 6 )
        +[    ]

  ++[[       ]]