stickline(c>o and ((h-c)>(2*c-2*o) or (o-l)>(2*c-2*o)),c,o,8,0),coloryellow;
stickline(c<o and ((h-o)>(2*o-2*c) or (c-l)>(2*o-2*c)),o,c,8,0),coloryellow;