private boolean plusSurround(int i, int j, char ch) {
		if ((i-1) >= 0 && (i+1) < grid.length && (j-1) >= 0 && (j+1) < grid[0].length)
			if (grid[i-1][j] == ch && grid[i+1][j] == ch && grid[i][j-1] == ch && grid[i][j+1] == ch)
				return true;
		
		return false;
	}