Your task is simple. You are given T test cases and each test cases has a string and a integer k.You need to reverse the string and print the k th character in the string.
see sample input and output for better understanding.
Constraints:
1 ≤ T ≤ 10
1≤len(str) ,k≤ 10⁴

Example:
1
vignan 2
Output:
a
Explanation:
When string is reversed "nangiv"
and 2nd character in string is 'a'