The image must:be at least $300$ pixels wide by $200$ pixels tall $($and NOT square$)$consist of grayscale values from $0$ to $255$contain at least two rectanglescontain at least two circles $($to have the possibility of getting an A$).$Your programs main will declare the array, then call the following two functions $($which youll write$)$:void createImage$($unsigned char image$[][$WIDTH$],$ int height $)$;bool writeImage$($const unsigned char image$[][$WIDTH$],$ int height, const string fileName $)$;The createImage$()$ function will create all the images pixel values. It must make use of the following function $($which youll write$)$void drawRect$($unsigned char image$[][$WIDTH$],$ int imgHeight, int rectTop, int rectLeft, int rectHeight, int rectWidth, unsigned char grayLevel$)$;And to have the possibility of getting an A:void drawCircle$($unsigned char image$[][$WIDTH$],$ int height, int centerX, int centerY, int radius, unsigned char grayLevel$)$;The writeImage$()$ function will write the array data to the specified text file $($along with the necessary header lines$).$ In C$++,$ write a code