using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("1er nombre");

        int trotinette = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine(" + , - , * ou /");

        string velo = Console.ReadLine();

        Console.WriteLine("2e nombre");

        int moto = Convert.ToInt32(Console.ReadLine());

        if (velo == "+")

        {

        }

    }

}