public static void printRegions(){
		for(int i = 0; i < m; ++i){
			System.out.println();
			for(int j = 0; j < n; ++j){
				if(Point.grid[i][j].isObstacle) System.out.print("X");
				else{
					System.out.print(Point.grid[i][j].id);
				}
			}
		}
		System.out.println();
	}