157,65,27,11,5,() A.4 B.3 C.2 D.1
:157 65 27 11 5 () A.4B.3C.2D.1
1 2 3 4 () 9 8 12 18 27 A.6 B.7 C.10 D.11
1,3/4,9/5,7/16,25/9,() A.15/38 B.11/36 C.14/27 D.18/29
1,1,3,4,9,7,()A.11 B.5 C.27 D.10
1 1 3 4 9 7 ()。A.11 B.5 C.27 D.10
157 65 27 11 5 ()。A.4 B.3 C.2 D.1