How do I get two integer values ​from the client by the terminal in this code - GO RPC

RPC Client Server with GO

Guys, how do I get two integer values ​​from the client by the terminal in this code, in arg A and B ? I need to make an account on the server and return it, but I don't understand go

SERVER

package main


import (
    "log"
    "net"
    "net/http"
    "net/rpc"
)

type Args struct{A,B int}

type BannerMessageServer string

func (t *BannerMessageServer) GetBannerMessage(args *Args, reply *string) error {
    *reply = "Sever OK"
    return nil
}

func main() {

    banner := new(BannerMessageServer)
    rpc.Register(banner)
    rpc.HandleHTTP()

    port := ":1122"

    listener, err := net.Listen("tcp", port)
    if err != nil {
        log.Fatal("listen error: ", err)
    }

    http.Serve(listener, nil)
}

CLIENT

package main

import (
    "log"
    "net/rpc"
)

type Args struct{
    A, B int
}

func main() {

    hostname := "localhost"
    port := ":1122"

    var reply string

    args := Args{A,B}

    client, err := rpc.DialHTTP("tcp", hostname+port)
    if err != nil {
        log.Fatal("dialing: ", err)
    }

    err = client.Call("BannerMessageServer.GetBannerMessage", args, &reply)
    if err != nil {
        log.Fatal("error", err)
    }

    // log the result
    log.Printf("%s\n", reply)
} 

It's an rpc client server, I want to receive two values ​​to do mathematical calculation and return

Can anyone help? need more details, just ask