var 1

#include <iostream>
#include <cmath>

using namespace std;

int main()
{
    int n;
    cin >> n;
    int ans(0), counter(0);
    int tmp;

    for(int i = 0; i < n; ++i)
    {
        cin >> tmp;
        int help = abs(tmp);
        if(help > 9)
        {
            int first_digit(0);
            int last_digit(0);
            last_digit = help % 10;
            while(help > 9)
            {
                help /= 10;
            }
            first_digit = help;
            if(first_digit == last_digit)
            {
                if(ans == 0)
                {
                    ans = tmp;
                }
                ++counter;
            }
        }
    }

    if(counter)
    {
        cout << ans << ' ' << counter;
    }
    else
    {
        cout << "NO\n";
    }
    return 0;
}