Digital Electronics – RS-flipflop realised with two BJTs

Program the RS-flipflop using two BJTs as shown in Fig. 1! The npn-BJTs are of
the type BC846A. The power supply of the circuit is +10 V. The base resistors have
values of RB = 2 kΩ. The collector resistors have values of RC = 1 kΩ.
The rectangular ac source for the Set input switches from 0 V to 10 V, whereas the
pulse high duration time is TH = 1 ms and the pulse low duration is TL = 10 ms.
Rise and fall time of the pulse are tr = tf = 10 μs. The time delay for the Set input
is Td = 1 ms.
The rectangular ac source for the Reset input switches from 0 V to 10 V, whereas
the pulse high duration time is TH = 1 ms and the pulse low duration is TL = 10 ms.
Rise and fall time of the pulse are tr = tf = 10 μs. The time delay for the Reset
input is Td = 5 ms.
this circuit of digital electronic
*Perform a transient analysis between 0 s and 30 ms and plot Set, Reset and Q versus
time!
*Check the operation of the flipflop!
*Can you comment and explain this graphic1 ?? check the operation of the flipflop ?? thanks...