RSS Switch Lite screws - which ifixit screwdriver do I use for this part of the dismantling

[GBATEMP]

See attached photo.

I cannot loosen any of these screws. Every youtube video I've watched doesn't bother to spend ten seconds telling the viewer which screwdriver to use. I'm baffled at how brazen some of these video guides are when they just skip through most of the process with zero explanation.

I have the following screwdrivers;
Y00
Ph00
Ph000
Y0

Four screws in total but they're two different sizes.

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