consider an inarr containing atleast two non- zero unique positive integers. identify and print,outnum, the number of unique pairs that can be identified from inarr such that the two integers in the pair when concatenated, results in a palindrome. if no such pairs can be identified, print -1.

Input format:

Read the array inarr with the elements separated by ,

Read the input from the standard input stream

Output format;

Print outnum or -1 accordingly

Print the output to the standard output stream