Need help about Proxy Types

i have a question whats difference between differentip: port and sameip:differentports

example

122.32.232.32:3213
231.32.451.123:1235

and

144.22.44.55:22345
144.22.44.55:22346
144.22.44.55:22347

whats best for instagram following/liking?

Ports is for listening connection on the network it does not effect on IP.

So use whatever ports your IP support and network support.