How do I change the last letter in text?

Good morning. I hope what I am trying to do is possible...

Sprite.X has four variables.

Variable 1 = P11T1

Variable 2 = P02T1

Variable 3 = B01T1

Variable 4 = D08T1

The action I want is this...

If Variable 1 ends in "T1"

and If Variable 2 ends in "T1"

and If Variable 3 ends in "T1"

and If Variable 4 ends in "T1"

then choose randomly Variable 1, Variable 2, Variable 3, Variable 4 and change those last two letter to T2

So basically check if all four variables end in T1, if so pick a random variable and amend the text to end in T2 instead. Thank you!

Would either of these two work?

If Variable 1 = ????"1"

If Variable 1 = "????1"

If it's always 2 characters at the end then, if the text was in a variable called 'mytext', then you can get the last 2 characters using:

right(mytext,2)

IF you need more info, read the Text section of System Expressions in the manual.

Thank you.