The problem of charging and discharging between two capacitors when the charges of their poles are not equal

Sorry, my English is not good, I try to describe the problem as clearly as possible.

As shown in the figure: C1 and C2 are two ideal flat capacitors with a capacity of 2 μF. The initial state before the closure of switches K1 and K2 is that the two capacitors are already charged and the natural discharge of the capacitors is not considered. Where a and d represent the outer side of the capacitor pole plate, and b and c represent the inner side of the capacitor pole plate. (For example, Q1a = +200μC means that the outer side of pole plate A of C1 carries a positive charge of 200 microcoulomb).
Analyze and answer: (1) The potential at each point of A1, B1, F2 and G2, the potential difference between A1 and B1, the potential difference between F2 and G2, and the energy stored in C1 and C2 before K1 and K2 are closed.
(2) After K1 and K2 are closed simultaneously for 50 seconds, the potential at each point of A1, B1, F2 and G2, the potential difference between A1 and B1, the potential difference between F2 and G2, the energy stored in C1 and C2, and the charge on the inner and outer sides of each pole plate. The energy consumed by the resistance R.
(3) If only K1 is closed, then after 50 seconds, the potential at each point of A1, B1, F2, and G2, the potential difference between A1 and B1, the potential difference between F2 and G2, the energy stored in C1 and C2, and the charge on the inner and outer sides of each pole plate. The energy consumed by the resistance R.