@app.route('/add', methods=['GET', 'POST'])
def add():
    f_name=input("ادخل الاسم الاول\n")
    l_name=input("ادخل الاسم الاخير\n")
    rand=random.randint(00, 99)
    emai='{}_{}{}@python.com'.format(f_name,l_name,rand)
    use = Users.query.filter((Users.email == emai)).count()
    if use == 0:
        new_user = Users(username=f_name,password=l_name,email=emai)
        db.session.add(new_user)
        db.session.commit()
        check_add=Users.query.filter((Users.username == f_name ) & (Users.password == l_name )&(Users.email == emai)).first()
        print(check_add.email)
        return emai
    else:
        emai = '{}_{}{}@python.co'.format(f_name, l_name, rand+1)
        if Users.query.filter((Users.email == emai)).count() == 0:
            new_user = Users(username=f_name, password=l_name, email=emai)
            db.session.add(new_user)
            db.session.commit()
            check_add = Users.query.filter((Users.username == f_name)&(Users.password == l_name)&(Users.email == emai)).first()
            print(check_add.email)
            return emai
        else:
            emai = '{}_{}{}@python.co'.format(f_name, l_name, rand * 2)
            new_user = Users(username=f_name, password=l_name, email=emai)
            db.session.add(new_user)
            db.session.commit()
            check_add = Users.query.filter(
                (Users.username == f_name) & (Users.password == l_name) & (Users.email == emai)).first()
            print(check_add.email)
            return emai