A4×0.7×6×160×300+2×0.7×6×160×180
B4×0.7×6×160×(300-10)+2×0.7×6×160×180
C4×0.7×6×160×(300-10)+1.22×2×0.7×6×160×180
D4×0.7×6×160×(300-2×6)+1.22×2×0.7×6×160×180
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