A.-0.75DS/-1.00DC×15 B.-1.00DS/-0.75DC×15 C.-0.75DS/-1.50DC×15 D.-0.50DS/-1.75DC×15
A.+0.75DS/-1.00DC×15 B.+1.00DS/-0.75DC×15 C.+1.00DS/-1.75DC×15 D.+0.50DS/-1.50DC×15
A.+0.75DS/-1.00DC×15 B.+1.00DS/-0.75DC×15 C.+1.00DS/-1.75DC×15 D.+0.50DS/-0.75DC×15