The demand for subassembly $\backslash ($ S $\backslash )$ is $80$ units in week $7.$ Each unit of $\backslash ($ S $\backslash )$ requires $2$ units of $\backslash ($ T $\backslash )$ and $1$ unit of $\backslash ($ U $\backslash ).$ Each unit of T requires $2$ units of $\backslash ($ V $\backslash ),2$ units of $\backslash ($ W $\backslash ),$ and $2$ units of $\backslash ($ X $\backslash ).$ Finally, each unit of $\backslash ($ U $\backslash )$ requires $1$ unit of $\backslash ($ Y $\backslash )$ and $3$ units of $\backslash ($ Z $\backslash ).$ One firm manufactures all items. It takes $2$ weeks to make $\backslash ($ S$,1\backslash )$ week to make $\backslash ($ T$,2\backslash )$ weeks to make $\backslash ($ U$,2\backslash )$ weeks to make $\backslash ($ V$,3\backslash )$ weeks to make W$,1$ week to make $\backslash (\backslash$mathrm$\{$X$\},2\backslash )$ weeks to make Y $,$ and $1$ week to make Z $.$

Click the icon to view the product structure and the time$-$phased product structure.

Click the icon to view the on$-$hand inventory.

Construct a net material requirements plan using on$-$hand inventory $($enter your responses as whole numbers$).$

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