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21487_I'llplayatrickonyou

2022-5-16 18:19| 发布者: Hocassian| 查看: 35| 评论: 0|原作者: 肇庆学院ACM合集

摘要:

C:\Users\Administrator\Downloads\2019-10-12-10-14-4-89505318995100-Problem List-采集的数据-后羿采集器.html

Pro.ID

21487

Title

I'll play a trick on you

Title链接

http://10.20.2.8/oj/exercise/problem?problem_id=21487

AC

Submit

116

Ratio

33.62%

时间&空间限制

Time Limit: 1000/500 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)

描述

Please look the picture carefully. Then I'll give you two integers and your task is output the third one.

Please never doubt the picture.

输入

The first line is a number T ( 1 ≤ T ≤ 30 ), represents the number of case. The next T blocks follow each indicates a case.

Each case contains two integers A, B ( 1 ≤ B ≤ A ≤ 10¹⁰⁰ )

输出

Description

Please look the picture carefully. Then I'll give you two integers and your task is output the third one.

Please never doubt the picture.

Input

The first line is a number T ( 1 ≤ T ≤ 30 ), represents the number of case. The next T blocks follow each indicates a case.

Each case contains two integers A, B ( 1 ≤ B ≤ A ≤ 10¹⁰⁰ )

Output

For each case, output the number of case and the third integer. (as shown in the sample output)

Sample Input

3
99 72
45 27
39 18

Sample Output

Case 1: 27
Case 2: 18
Case 3: 21

Source

2011 alibaba

样例输入