program
    class Main <empty>
        static func main inttype
            formals
            stmtblock
                assign
                    varref i
                    cond
                        varref a
                        varref b
                        varref c
                assign
                    varref i
                    cond
                        varref a
                        cond
                            varref b
                            cond
                                varref d
                                varref e
                                varref f
                            varref g
                        varref h
                assign
                    varref i
                    cond
                        or
                            not
                                varref a
                            varref b
                        equ
                            varref c
                            varref d
                        add
                            varref e
                            varref f
                return
                    intconst 0
