What is the optimal order size?

D

$=$

$1$

$2$

$0$

$,$

$0$

$0$

$0$

S

$=$

$1$

$2$

$0$

$0$

C

$=$

$4$

$8$

$0$

$,$

$0$

$0$

$0$

H

$=$

$0$

$.$

$8$