int choose;
	double x1,y1,x2,y2,x3,y3,x4,y4,x=0.0,y=0.0;

	for(int i=0;i<200000;i++)
	{
		srand(time(NULL));
	    choose=rand()%4+1;
	    switch(choose)
	    {
	    case 1:
		    x1=0.86*x+0.03*y;
	        y1=-0.03*x+0.86*y+1.5;
		    x=x1;
		    y=y1;
	        drawSquare(x,y);
		    x++;
		    y++;
	    case 2:
		    x2=0.2*x-0.25*y;
	        y2=-0.21*x+0.23*y+1.5;
	        drawSquare(x,y);
		    x++;
		    y++;
	    case 3:
		    x3=-0.15*x+0.27*y;
	        y3=0.25*x+0.26*y+0.45;
	        drawSquare(x,y);
		    x++;
		    y++;
	    case 4:
		    x4=0*x+0*y;
	        y4=-0*x+0.17*y;
	        drawSquare(x,y);
		    x++;
		    y++;
	    }
	}