#include <iostream>
#include <cstring>
using namespace std;

bool isPalindrome(const char *);

int main() {
    char i='a',j='A';
    cout<<(int)i<<(int)j;
    cout << "Enter a string:";
    char s[80];
    cin.getline(s, 80);
    if(isPalindrome(s))
        cout << s << " is a palindrome" << endl;
    else
        cout << s << " is not a palindrome" << endl;
    
    return 0;
}

bool isPalindrome(const char * const s)
{
    int low = 0;
    int high = strlen(s) - 1;
    
    while (low < high)
    {
        if (s[low] != s[high]&&(s[low]+32!=s[high])&&(s[low]-32!=s[high]))
            return false;
        low++;
        high--;
    }
    
    return true;
}