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Print the Kth Digit
Basic Accuracy: 31.72% Submissions: 1370 Points: 1

Given two numbers A and B, find Kth digit from right of AB.

Example 1:

Input:
A = 3
B = 3
K = 1
Output:
7
Explanation:
33 = 27 and 1st
digit from right is
7


Example 2:

Input:
A = 5
B = 2
K = 2
Output:
2
Explanation:
52 = 25 and second
digit from right is
2.


You don't need to read input or print anything. Your task is to complete the function kthDigit() which takes integers A, B, K as input parameters and returns Kth Digit of AB from right side.

Expected Time Complexity: O(log AB)
Expected Space Complexity: O(1)

Constraints:
1 <= A,B <= 15
1 <=K<= digits in AB

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