Consider a Multilerel Feedback queue scheduler with three queues, numbered from $0$ to $2.$ Show how to schedule the following processes.

$Q_0-$ RR Scheduling: Quantum $=16$

$Q_1-$ RR Scheduling: Quantum $=26$

$Q_2=FCFS$

$\backslash$table$[[$Process$,$Burst Time,Arrival$],[P_1,50,0],[P_2,19,0],[P_3,65,0],[P_4,25,0]]$

Draw Gantt chart.