2022-day2b-p1.c

    while(1)
    {
        int o, m;

        if(!fgets(line, 128, f))
            break;

  
        o = line[0] - 'A';
        m = line[2] - 'X';

        sum += ((o==m)+(((o^2)-!!(o^2)==m)<<1))*3+m+1;
    }