第一輪--------
A(2,1,1)
B(1,2,1)(2,3,1)
C(1,1,2)(2,1,3)
(1,2,3)(2,3,5)
第二輪--------
A(3,2,1)(4,3,1)
(3,1,2)(4,1,3)
(5,2,3)(8,3,5)
B(1,3,2)(2,5,3)
(1,4,3)(2,7,5)
(3,4,1)(4,5,1)
(3,5,2)(4,7,3)
(5,8,3)(8,13,5)
C(3,2,5)(4,3,7)
(3,1,4)(4,1,5)
(5,2,7)(8,3,11)
(1,3,4)(2,5,7)
(1,4,5)(2,7,9)
(3,4,7)(4,5,9)
(3,5,8)(4,7,11)
(5,8,13)(8,13,21)
裡頭是78的因數只有(5,8,13),轉換成對應的正整數分別是30,48,78。