#include <iostream>

#include <string>

using namespace std;

bool islower(char ch)

{

    if (ch >= 'a' && ch <= 'z')

        return true;

    return false;

}

bool isUpper(char ch)

{

    if (ch >= 'A' && ch <= 'Z')

        return true;

    return false;

}

int main()

{

    int T;

    char ch;

    int y, sum = ;

    cin >> T;

    while (T--)

    {

        cin >> ch >> y;

        sum = y;

        if (islower(ch))

        {

            sum = sum - ( ch - 'a'+  );

        }

        else

        {

            sum = sum + (ch - 'A' + );

        }

        cout << sum << endl;

    }

    return ;

}