IF statement in AMPScript - if-statement

Question

I have a little problem with if statement as it populates only last elseif
%%[IF #Add3 == "Y" AND #Add4 == "Y" AND #Add5 == "N" THEN
SET #WhichNom1 = "1"
SET #WhichNom2 = "2"
ELSEIF #Add3 == "Y" AND #Add4 == "N" AND #Add5 == "Y" THEN
SET #WhichNom1 = "1"
SET #WhichNom2 = "3"
ELSEIF #Add3 == "N" AND #Add4 == "Y" AND #Add5 == "Y" THEN
SET #WhichNom1 = "1"
SET #WhichNom2 = "3"
]%%
#WhichNom1
#WhichNom2
%%[ENDIF]%%
The code above will display two variables when the last ELSEIF is TRUE. What do I need to do to check 3 statements and display WhichNom1 and WhichNom2 for every scenario?

Answer 1

You're only printing the variables if the last elseif is true.
Move them like this:
...
ELSEIF #Add3 == "N" AND #Add4 == "Y" AND #Add5 == "Y" THEN
SET #WhichNom1 = "1"
SET #WhichNom2 = "3"
]%%
%%[ENDIF]%%
#WhichNom1
#WhichNom2
So they're outside the IF/ELSEIF. That way they'll always be printed, but the variables will be set differently based on the clauses.
EDIT:
If you only want the variables printed if one of the statements is true, then you would (as you have mentioned) need to print them within the if statement, OR you could:
SET #WhichNom1 = ""
SET #WhichNom2 = ""
before the if statements, then after them do:
IF #WhichNom1 != "" THEN #WhichNom1
IF #WhichNom2 != "" THEN #WhichNom2
so you only print them if they've been set to something other than "".

Answer 2

I managed to get it sorted in slightly different way using two IF statements
%%[IF #Add3 == "Y" AND #Add4 == "Y" AND #Add5 == "N" THEN
SET #WhichNom1 = "1"
SET #WhichNom2 = "2"
SET #Status = "T"
ELSEIF #Add3 == "Y" AND #Add4 == "N" AND #Add5 == "Y" THEN
SET #WhichNom1 = "1"
SET #WhichNom2 = "3"
SET #Status = "T"
ELSEIF #Add3 == "N" AND #Add4 == "Y" AND #Add5 == "Y" THEN
SET #WhichNom1 = "2"
SET #WhichNom2 = "3"
SET #Status = "T"
ELSE
SET #Status = "F"
ENDIF]%%
%%[IF #Status == "T" THEN]%%
#WhichNom1
#WhichNom2
%%[ENDIF]%%

Answer 3

Rob is correct. Also if you want to print #WhichNom1 and #WhichNom2 outside of the AMPscript block, you'll probably need to code as:
%%[
IF #Add3 == "Y" AND #Add4 == "Y" AND #Add5 == "N" THEN
SET #WhichNom1 = "1"
SET #WhichNom2 = "2"
SET #Status = "T"
ELSEIF #Add3 == "Y" AND #Add4 == "N" AND #Add5 == "Y" THEN
SET #WhichNom1 = "1"
SET #WhichNom2 = "3"
SET #Status = "T"
ELSEIF #Add3 == "N" AND #Add4 == "Y" AND #Add5 == "Y" THEN
SET #WhichNom1 = "2"
SET #WhichNom2 = "3"
SET #Status = "T"
ELSE
SET #Status = "F"
ENDIF
]%%
%%[ IF #Status == "T" THEN ]%%
%%= v(#WhichNom1) =%%<br />
%%= v(#WhichNom2) =%%
%%[ ENDIF ]%%