#include <iostream>
#include <fstream>
#include <string>
#include <cmath>
#include <math.h>

using namespace std;

int main()
{

    ifstream in("DATA2.txt");
    ofstream out("OUT2.txt");

    int digits;
    int num;
    int sum;
    string input;

    char num_value[] ={'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'K'};
    int sum_digit[2];
    for (int i=0; i<5; i++)
    {
        in >> num;
        in >> input;
        sum=0;
        int temp= num;

        for( int j=0; j<6; j++)
        {
            digits= (int)(temp/pow(10.0, 5-j));
            temp -= digits * (int) pow(10.0, 5-j);
            sum += digits;
        }

        sum_digit[0]= sum/10;
        sum -= (sum_digit[0] * 10 );
        sum_digit[1]= sum;
        sum= (sum_digit[0] + sum_digit[1]);

        if(input[0] == num_value[sum-1])
        {
            out<< "match"<<endl;
        }
        else
        {
            out<< "error"<< endl;
        }
    }

    return 0;
}