a, \(A\in\left\{0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17\right\}\)
\(B\in\left\{0,2,4,6,8,10,12,14,16,18,20,22,24\right\}\)
b, \(S\in\left\{0,2,4,6,8,10,12,14,16\right\}\)
a, A∈{0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17}A∈{0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17}
B∈{0,2,4,6,8,10,12,14,16,18,20,22,24}B∈{0,2,4,6,8,10,12,14,16,18,20,22,24}
b, S∈{0,2,4,6,8,10,12,14,16}S∈{0,2,4,6,8,10,12,14,16}