Is to define a main method calculate in the AbstractCalculator class, calculate () calls spilt (), etc. Plus and Minus inherit the AbstractCalculator class respectively, and implement the call to subclasses through the call to AbstractCalculator, see the following example:
张纪中版《西游记》以丰富瑰奇的想象描写了师徒四众在迢遥的西方途上和穷山恶水冒险斗争的历程，并将所经历的千难万险形象化为妖魔鬼怪所设置的八十一难，以动物幻化的有情的精怪生动地表现了无情的山川的险阻，并以降妖服怪歌赞了取经人排除艰难的战斗精神。
莱宁竭力想弄清真相，但科林尼对作案动机始终保持缄默，莱宁不得不为一个不需要辩护的被告进行辩护。经过不懈的探查，他终于找到了一条线索，并且发现了德国司法史上令人震惊且黑暗的一幕……
为了陈启的事，陈文羽头上的白头发都多了一堆。
Reddish brown system: cinnamon, fire thorn wood, loquat, longan, tea
The learning platform launched on that day is called "Learning Power". No matter from the time node, the attendees or even the names of the platform, it obviously has a very heavy weight.
爆笑喜剧《塔科马消防队/Tacoma FD》第二季将于三月播出。
当天，凪偶然遇到名门女子学校的女高中生天野绘里香，为了帮助不想和未婚夫结婚的她，他答应了她的请求，半强行地扮演了她男朋友这一角色……
这里，就是我的家啊。
“成为魔法少女的时候，我是许了什么愿望来着？”
张槐温声问大苞谷：既如此，你可愿当着刑部大人的面将此事说清楚？刚才问他话，他可是不愿回答的。
该剧是讲述理疗师、复健治疗师、X光操作师、实习生、护士等在医院工作的人们的故事。
It shows that there are 324 unconnected TCP port 22. Although it is far from the system limit, it should be noticed by administrators.
但愿吧。
会和项伯一样吗？那么他的目的又何在呢？来找自己联盟？刘邦也在第一时间反应过来，尹旭和自己处境很相似，和自己结盟未尝没有可能。
1938年，在抗日的战火硝烟中，在冀东西部边缘潮白地区的牛山镇，不经意中，显现了御笔手抄《道德经》。于是，日军、假抗日为名的游杂武装，散兵游勇、土匪和民间多年来窥探其密，卧薪尝胆想发财的人，蜂拥而至，展开了明争暗斗……
1. Since the establishment of the Industrial Company, a series of measures taken by the Company's Party Committee in the reform, development, management and service of the Company are pragmatic and correct, which have played a positive role in promoting the development of the Group Company. For example, the "three system reforms" have greatly promoted the process of the modern enterprise system of the group company. The implementation of the "morals construction" activity has played a positive role in improving the service level of industrial companies. The decision to clean up and rectify the multi-economic enterprises is very correct and timely, which has played a very good role in standardizing the operation of the group company. The management policy of "basing on the main business, giving priority to occupying the main business market" and "vigorously developing the social market" is also correct. It enables industrial companies to actively participate in market competition under the premise of giving full play to their own advantages. The management strategy is relatively mature and practical. Under the guidance of this policy, all subordinate units and municipal branches have achieved better management results.
