A.<0.04s B.<0.06s C.<0.08s D.<0.10s E.<0.12s
A.1/2 B.1/3 C.1/4 D.1/5 E.1/6
A.0.04~0.08s B.0.04~0.10s C.0.06~0.10s D.0.08~0.10s E.0.08~0.12s