Meng Meng is invited to the magiccastle by the magician. However, the littlemagician played a joke on Mengmeng--If she wants to enter the castle, she hasto decode the password on the door. Ifshe can find out the correct number, thedoor will be opened. Mengmeng is a littleworried. You are smart, can you helpMengmeng work out the correct numberon the door? 全文查看链接