A-1 answer <a>6 <b>7 <c>8 <d>9
A-2 answer <a>仢丂<b>仛丂<c>仧丂<d>仩
A-3 answer <a>777 <b>999 <c>345 <d>789
A-4 answer <a>132 <b>150 <c>210 <d>120
A-5 answer <a>123 <b>3 <d>6 <c>36
<a> <b> <c> <d>