SetupAGWithReplDefaultPortSameSubnetPushSub.sql
This script is to Setup Distributor and Publisher database in an AG using Default Port and here all the replicas are in the Same Subnet. It also creates Publication and Push Subscription for the same.

SetupAGWithReplDefaultPortSameSubnetPullSub.sql 
This script is to Setup Distributor and Publisher database in an AG using Default Port and here all the replicas are in the Same Subnet. It also creates Publication and PULL Subscription for the same.