hi how is this issue in java programming language. please help

/**
 * @author koti4
 *
 */
import java.util.*;
public class Main {

    /**
     * @param args
     */
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int k,n,x,y,flag=0;
        char x1,y1;
        String s = "  ";
        n=input.nextInt();
        for(int q = 0;q<n;q++) {
            s=input.next();
            x1=s.charAt(0);
            y1=s.charAt(1);
            x = (int) x1-96;
            y = (int) y1-48;
            /*System.out.println(x);
            System.out.println(y);*/
            for(int i =-2;i<=2;i++) {
                for(int j=-2;j<=2;j++) {

                    if (j != i) {
                        if(x-i>0 & y-j>0 & x-i < 9 & y-j < 9) {
                            if(i*i+j*j==5) {
                                flag++;
                            }
                        }
                    }
                }
            }

            System.out.println(flag);
            flag = 0;
        }
        input.close();
    }

}