test(f0, f5(5000), "a a <f0>")
test(f0, f6(6000), "a a <f0>")
test(f1, f5(5000), "a a <f1>")
test(f1, f6(6000), "a a <f1>")
test(f2, f5(5000), "a a [f2]")
test(f2, f6(6000), "a a [f2]")
test(f3, f5(5000), "a c {f3}")
test(f3, f6(6000), "a c {f3}")
test(f4, f5(5000), "a c {f4}")
test(f4, f6(6000), "a c {f4}")
test(f5(50), f5(5000), "a c (f5(50)) 50")
test(f5(50), f6(6000), "a c (f5(50)) 50")
test(f6(60), f5(5000), "d e /60/")
test(f6(60), f6(6000), "d f *6060*")
test(f7(70), f5(5000), "d e /70/")
test(f7(70), f6(6000), "d f *6070*")
test(f8(80), f5(5000), "d e !80!")
test(f8(80), f6(6000), "d f -6080-")
test(f9(90), f5(5000), "d e !90!")
test(f9(90), f6(6000), "d f -6090-")