Last index of a character in the string
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  Difficulty: Basic   Marks: 1

Given a string S containing all the characters and a character X, the task is to find last index of X in string S.

Input:
The first line of input contains an integer T denoting the number of test cases. Then T test cases follow.
Each test case consists of two lines. First line of each test case contains a string S and the second line contains a character X.

Output:
For each test case, print the last index in new line, If X is not present in the string print "-1".

Constraints:
1<=T<=100
1<=|string length|<=105

Example:
Input:
2
Geeks

e
Hello world
o

Output:
2
7

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

Author: arun03


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