Simply the rules apply from left to right:
^1^2^3
BUT:
^3^2^1
I hope undeath doesn't mind me "butt"ing in. xD
^1^2^3
Code:
^1 ^2 ^3
^1 === 1test >>> ^2 === 21test >>> ^3 === 321test
^3^2^1
Code:
^3 ^2 ^1
^3 === 3test >>> ^2 === 23test >>> ^1 === 123test
I hope undeath doesn't mind me "butt"ing in. xD