IP list Formats

Hello,

I have 10 IPs, and I want to add them in Firewall on a server in whitelist,

How I can add?

Thanks

1.2.1.1/32
1.2.1.2/32
1.2.1.3/32
1.2.1.4/32
1.2.1.5/32
1.2.1.6/32
1.2.1.7/32
1.2.1.8/32
1.2.1.9/32
1.2.1.10/32

Or any other ip adress / cird format

Thank you.

What If I only add IPs per line? It will work?
1.2.3.4
4.3.2.1
5.5.5.5

these IPs I have to write in a .txt file?

Or How I can know that after / slash I have to use /32 - because some time I have seen on websites use
various numbers like: /16 /24/ /32

You can use any valid cidr format