URI 1158:: SOLUTION

URI Online Judge | 1158

Sum of Consecutive Odd Numbers III

Read an integer N that is the number of test cases that follows. Each test case contains two integers X and Y. Print one output line for each test case that is the sum of Y odd numbers from X including it if is the case. For example:
for the input 4 5, the output must be 45, that is: 5 + 7 + 9 + 11 + 13
for the input 7 4, the output must be 40, that is: 7 + 9 + 11 + 13

Input

The first line of the input is an integer N that is the number of test cases that follow. Each test case is a line containing two integer X and Y.

Output

Print the sum of all consecutive odd numbers from X.

Input Sample	Output Sample
2 4 3 11 2	21 24

[WAIT]

     First of all, think yourself that you have tried enough for the problem. If you did not please read the program once. REMEMBER one thing, just believe in yourself.....YOU CAN.....YOU KNOW....

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