Sastry Numbers

Given an integer N, the task is to check N is a Sastry number.

A number N is a Sastry Number if N concatenated with N + 1 gives a perfect square. 

Examples:

Input: N = 183 
Output: Yes 
Explanation:
183 + 184 = 183184 = 428²
Input: N = 28 
Output: No 

Approach: The idea is to convert the number to string and concatenate N and (N + 1) and then again convert it to an integer. Now we just have to check if the final number is a perfect square. If yes then the given number is a Sastry number.
Below is the implementation of the above approach:

Output

Yes

References: OEIS