每个地区有一个编号（从 1 到 N） ，如果一个地区有军队的话，这些军队将组成一个军

团。指挥中心将发布的命令如下：

U a b:将 b 地区军团的调到 a 地区，从而组成一个新的军团。为了便于管理，每次新加

入的军队将按顺序加入到 a 军团后面。数据保证 a 与 b 不相同。

I a x:将一支人数为 x 的军队调到 a 地区。为了便于管理，每次新加入的军队将加入到

a 军团前面。

D a x:将 a 地区中军队人数为 x 的调走。若不存在，则不执行。

Q a：询问 a 地区的具体军事信息（即按顺序输出该军团中每个军队的人数）-Each region has a number (from 1 to N), if a regional army, these troops will form a legion. The command center will command as follows: U ab: b region transferred to a region of the Legion to form a new legion. For ease of administration, and each new army sequentially added to the back of a Legion. The data to ensure that a and b are not the same. I ax: the armed forces of a number of x transferred to a region. For ease of administration, each new army will be added to the front of a legion. D ax: the number of troops in a region to the tune of x go. If there is not executed. Q a: ask a specific military information (that is, the number of each army sequentially output the Legion)