Explain what and why the following Oz program will display:

declare

proc {F A}

A:=@A+1

A:=@A*@A

end

proc {G A}

E={NewCell A}

in

E:=@E+1

E:=@E*@E

end

local

C={NewCell 0}

D={NewCell 1}

in

C:=5

D:=6

{Browse @C#@D}

{F C}

{G @D}

{Browse @C#@D}

end