( A [ i ] [ 0 ] , A [ i ] [ 1 ] ) denotes the coordinate of the bottom left of the rectangle ( A [ i ] [ 2 ] , A [ i ] [ 3 ] ) denotes the coordinate of upper right of the rectangle
A = [ [ 1 , 3 , 4 , 5 ] , [ 3 , 1 , 7 , 4 ] , [ 5 , 3 , 8 , 6 ] ] ; NEW_LINE