Steven Starr has an idea for a desert he is preparing to sell via food truck for restaurant week$-$ grilled bananas with Belgian chocolate ganache. The bananas go through a $4-$step process consisting of pealing, filling, grilling, and the last step consists of two areas that perform splashing & wrapping $($they are in parallel$).$ Pealing takes $1$ minute, filling takes $2$ minutes and grilling takes $5$ minutes. Splashing$/$wrapping takes $3$ minutes.