public class Shuzu
{
int[][] lk={{2,1,2,2,1},{1,1,1,2,2},{2,2,2,1,1}};
void Check(int x,int y) {
if(lk[x][y]==0)
return;
Checkxy(x-1,y);
Checkxy(x+1,y);
Checkxy(x,y-1);
Checkxy(x,y+1);
}
void Checkxy(int x,int y) {
if(x>=0&&x<=2&&y>=0&&y<=2&&lk[x][y]==1) {
lk[x][y]=2;
Check(x,y);
}
}
void Print() {
for(int i=0;i<3;i++) {
for(int j=0;j<3;j++)
System.out.print(lk[i][j]);
System.out.println();
}
}
public static void main(String[] args)
{
Shuzu kang=new Shuzu();
kang.Check(1,1);
kang.Print();
System.out.println("Hello World!");
}
}