program
    class Main <empty>
        static func main voidtype
            formals
            stmtblock
                vardef i inttype
                vardef F classtype Fibonacci
                assign
                    varref F
                    newobj Fibonacci
                assign
                    varref i
                    intconst 0
                while
                    les
                        varref i
                        intconst 10
                    stmtblock
                        print
                            call get
                                varref F
                                varref i
                            stringconst "\n"
                        assign
                            varref i
                            add
                                varref i
                                intconst 1
                assign
                    varref i
                    readint
                print
                    call get
                        varref F
                        varref i
                    stringconst "\n"
    class Fibonacci <empty>
        func get inttype
            formals
                vardef index inttype
            stmtblock
                if
                    les
                        varref index
                        intconst 2
                    stmtblock
                        return
                            intconst 1
                return
                    add
                        call get
                            <empty>
                            sub
                                varref index
                                intconst 1
                        call get
                            <empty>
                            sub
                                varref index
                                intconst 2