Palindrome index - using iterative solution, not recursive; stop early once found one possible index

PalindromeIndex3.cs

using System;

class Solution {
        static void Main(string[] args)
        {
            int t = int.Parse(Console.ReadLine());
            for (int i = 0; i < t; i++)
            {
                Console.WriteLine(FindCharacterToRemove(Console.ReadLine()));
            }
        }

        static int FindCharacterToRemove(string s)
        {
            var high = s.Length;
            for (var low = 0; low < high--; low++)
            {
                if (s[low] != s[high])
                {
                    return s[low + 1] == s[high] && (s.Length < 3 || s[low + 2] == s[high - 1]) ? low : high;
                }
            }
            return -1;
        }
}