For UConn v Alabama, UConn will have the top row and Alabama will have the left column.
For Purdue v NC State, Purdue will have the top row and Alabama will have the left column.
No matter what, if UConn advances to the Championship, they will have the top row. If Purdue and UConn advance, UConn will have the top row (region is first alphabetically), otherwise, seeding will control. No matter what, if NC State advances to the Championship, they will have the first column for numbers.