Charge on a capacitor

A circuit is built from three capacitors and a battery with values:
C1=1600nanoFarad
C2=900nanoFarad
C3=2200nanoFarad
V=3V

Capacitors C1 and C2 are connected in series. This branch is connected in parallel to capacitor C1, and both these branches are connected in parallel to the battery V. What is the ch…