Given a range [a, b], you are to find the summation of all the odd integers in this range. For example, the summation of all the odd integers in the range [3, 9] is 3 + 5 + 7 + 9 = 24. Input There can be at multiple test cases. The first line of input gives you the number of test cases, T (1≤T ≤100). ThenTtestcasesfollow. Eachtestcaseconsistsof2integersaandb(0≤a≤b≤100) in two separate lines. Output For each test case you are to print one line of output – the serial number of the test case followed by the summation of the odd integers in the range [a, b]. Sample Input 2 1 5 3 5 Sample Output Case 1: 9 Case 2: 8