Irri$-$Tech Inc, has two production lines $($plastic and bronze$)$ of sprinklers for irrigating orchards. The company would like to determine its capacity requirements for the next three years. The management has forecasted demand for next three years as follows:Year $1$: Plastic nozzle : $100000$ and Bronze nozzle: $25000$Year $2$: Plastic nozzle: $130000$ and Bronze nozzle: $32000$Year $3$: Plastic nozzle: $155000$ and Bronze nozzle: $38000$The company has one plastic injection molding machine which is needed to produce plastic sprinklers and three bronze machines needed to produce bronze sprinklers. Each plastic injection molding machine requires four operators and can produce up to $250,000$ sprinklers per year. Each bronze machine requires two operators and can produce $15,000$ sprinklers per year. Calculate the capacity requirement for the next three years and suggest an appropriate strategy to manage capacity in the long run.