public static void main(String[] args) {
        char[][] board = {
                {'X','X','X','X'},
                {'X','O','O','X'},
                {'X','X','O','X'},
                {'X','O','X','X'}
        };
//		char[][] board = {
//				{'X','X','X'},
//				{'X','O','X'},
//				{'X','X','X'},
//			
//			};
        new Surrounded_Regions().solve(board);
        for(int i=0;i<board.length;i++){
            System.out.println(Arrays.toString(board[i]));
        }
        System.out.println("Hello World");
    }