The company operates $52$ weeks per year. A continuous review system is used to control inventory.

Annual demand $=114,400$ per year

Average lead time $=7$ weeks

Standard deviation of lead time $=2$ weeks

Cycle$-$service level $=90\%($use $Z=1\mathrm{.}28)$

What safety stock $($SS$)$ should the firm use for this product?

Round the final answer to a whole number $($e$.$g$.,78$ or $101).$

Type in just the final answer value, do not use symbols, letters, or commas $(,).$

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