process$|$Priority$|$arrival time$|$burst time A$|4|15|1$ B$|4|13|3$ C$|1|6|2$ D$|4|1|14$

Use the letter r to show that a process uses a timeslot and the letter o to show that a process does not use a timeslot. Enter the values for each row as a single string in the fields provided $($e$.$g$.$ rrrooorrroo$).$ Spaces will not be ignored.

$$Technique: Priority Queue SJF pre$-$emption by priority $($higher number $=$ higher priority$)$