	0	0	1	null
	10	1	0	fprint("lib-fflush-test-a-out.txt","welcome to libc!
")
	20	3	0	fprint("lib-fflush-test-a-out.txt",28," is a perfect number.
")
	30	2	0	fprint("lib-fflush-test-a-out.txt","To thine own self be ",true,".
")
	40	4	0	fflush("lib-fflush-test-a-out.txt")
