0.00/0.00	NO
0.00/0.00	
0.00/0.00	peak
0.00/0.00	
0.00/0.00	f(g(x0))
0.00/0.00	*<-
0.00/0.00	f(f(f(x0)))
0.00/0.00	->*
0.00/0.00	g(f(x0))
0.00/0.00	
0.00/0.00	is not joinable
0.00/0.00	
0.00/0.00	EOF