How do you wipe you ass?

The place I'm in does not have water because of the water pipe line issue, so the water is expected to be down for few days. And as I have a very limited access of water, I need to start leaning new skill. Which is use a tissue after you shit, so to those who use tissue after you shit can you tell me how? I usually have a bidet so I never really use a tissue except to pat it dry

Like please help I've been holding my shit for hours now cause i only have a bucket of water to survive this few days without water