{"trustable":false,"sections":[{"title":"","value":{"format":"MD","content":"给出**二叉树**的**先序**遍历和**中序**遍历序列,请求出它的**后序**遍历序列。"}},{"title":"Input","value":{"format":"MD","content":"输入包含一个或多个测试用例。每个测试用例包含2个由空格分开的字符串,分别表示二叉树的先序遍历序列和后序遍历序列(字符均为唯一的大写字母,所以每个字符串长度不超过26)。"}},{"title":"Output","value":{"format":"MD","content":"输出二叉树的后序遍历序列"}},{"title":"Sample Input","value":{"format":"MD","content":"`ABDEC DBEAC`"}},{"title":"Sample Output","value":{"format":"MD","content":"`DEBCA`"}}]}