Are these capacitors?
No, these are inductors.

The "303" is very likely a 30 * 10^3 = 30 000 nH = 30 uH inductor

The other one has two red dots and like resistors red stands for 2. This could be a 22 uH inductor or 2.2 uH.

You can check that these are inductors using a multimeter on ohms range, at DC inductors have a low resistance. If these were capacitors you'd measure in infinite DC resistance (unless the capacitor is broken).