计算。9`0n3],r/o+M6b:T
5×5=/q)h7P/b0C:A 5×4=(I1s*B;O(w8K8w0e5A7H6h:M,g9`0n3],r/o+M6b:T
5×3=*\0a0|:]2S2k 5×2=6a*y9c)\8i4d9m1L:l;D-S:^/x(x3K8L5d9`0n3],r/o+M6b:T
5×1=;^.p:G0L/n2p+].]5T 5×0=)^([0{9G:l9`0n3],r/o+M6b:T