97×2000－96×2001/S.A7Z8T*q.H1L:N-g:o:z6M)D6I
算式：提示,a7~+S-a1v,_/S.A7Z8T*q.H1L:N-g:o:z6M)D6I
7Q*O8s4|4p/S.A7Z8T*q.H1L:N-g:o:z6M)D6I