Mystic Falls School
Submissions: 1678   Accuracy: 61.95%   Difficulty: Easy   Marks: 2

Mystic Falls School (which has classes from 1 to 12) allots admission numbers to Students as negative and  positive integers. Damon is a new admission in this school and he is the 199th student to get admission in class 11th. To his surprise, he has been allotted admission number as  -189. Damon being a curious guy wants to know the logic behind the admission number allotment. Can you help him!

Input:
The first line of the input contains an integer T denoting the number of test cases. The description of each testcase follows. Each test case contains a single line with 2 integers which are Xth student and  Gth grade i.e. class.

Output:
For each test case, output a new line with a single integer which should be the the admission number of the Xth student.

Constraints:
1 < =  G  < = 12
1 < =  X  <  = 10000
1 < = T  < = 900

Example:
Input :

6
129  5
150  7
556  8
9  2
348  10
223  12
Output :
-125
-144
-549
-8
-339
-212

** For More Input/Output Examples Use 'Expected Output' option **

Contributor: Diksha Singhal
Author: diksha1812

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