what is the difference about the 3 beginning and bc at the beginning of the segwit address
top secret shit there
https://en.wikipedia.org/wiki/SegWit
how to
https://bitcoin.stackexchange.com/questions/57832/how-to-generate-segwit-address
then again, first learn about what is an address
https://en.bitcoin.it/wiki/Address
...
In general its best to print everything at bitcoin.it, and keep it near the toilet, so you have something to read, while waiting, ...