From the following list, identify the index that contains only Persian characters and select the one that is more suitable based on content or length. The output should only be the numerical index.

List:
['"<div>\\n"\n"    <t t-set=\\"colors\\" t-value=\\"{\'needsAction\': \'grey\', \'accepted\': \'green\', \'tentative\': \'#FFFF00\', \'declined\': \'red\'}\\"></t>\\n"\n"    <t t-set=\\"is_online\\" t-value=\\"\'appointment_type_id\' in object and object.appointment_type_id\\"></t>\\n"\n"    <t t-set=\\"target_responsible\\" t-value=\\"object.partner_id == object.partner_id\\"></t>\\n"\n"    <t t-set=\\"target_customer\\" t-value=\\"object.partner_id == customer\\"></t>\\n"\n"    <t t-set=\\"recurrent\\" t-value=\\"object.recurrence_id and not ctx.get(\'calendar_template_ignore_recurrence\')\\"></t>\\n"\n"    <t t-set=\\"mail_tz\\" t-value=\\"object._get_mail_tz() or ctx.get(\'mail_tz\')\\"></t>\\n"\n"    <div>\\n"\n"        <table border=\\"0\\" cellpadding=\\"0\\" cellspacing=\\"0\\">\\n"\n"            <tr>\\n"\n"                <td width=\\"130px;\\" style=\\"min-width: 130px;\\">\\n"\n"                    <div style=\\"border-top-start-radius: 3px; border-top-end-radius: 3px; font-size: 12px; border-collapse: separate; text-align: center; font-weight: bold; color: #ffffff; min-height: 18px; background-color: #875A7B; border: 1px solid #875A7B;\\">\\n"\n"                        <t t-out=\\"format_datetime(dt=object.start, tz=mail_tz if not object.allday else None, dt_format=\'EEEE\', lang_code=object.env.lang) \\">سه\u200cشنبه</t>\\n"\n"                    </div>\\n"\n"                    <div style=\\"font-size: 48px; min-height: auto; font-weight: bold; text-align: center; color: #5F5F5F; background-color: #F8F8F8; border: 1px solid #875A7B;\\">\\n"\n"                        <t t-out=\\"format_datetime(dt=object.start, tz=mail_tz if not object.allday else None, dt_format=\'d\', lang_code=object.env.lang)\\">۴</t>\\n"\n"                    </div>\\n"\n"                    <div style=\\"font-size: 12px; text-align: center; font-weight: bold; color: #ffffff; background-color: #875A7B;\\">\\n"\n"                        <t t-out=\\"format_datetime(dt=object.start, tz=mail_tz if not object.allday else None, dt_format=\'MMMM y\', lang_code=object.env.lang)\\">مه ۲۰۲۱</t>\\n"\n"                    </div>\\n"\n"                    <div style=\\"border-collapse: separate; color: #5F5F5F; text-align: center; font-size: 12px; border-bottom-end-radius: 3px; font-weight: bold; border: 1px solid #875A7B; border-bottom-start-radius: 3px;\\">\\n"\n"                        <t t-if=\\"not object.allday\\">\\n"\n"                            <div>\\n"\n"                                <t t-out=\\"format_time(time=object.start, tz=mail_tz, time_format=\'short\', lang_code=object.env.lang)\\">۱۱:۰۰ صبح</t>\\n"\n"                            </div>\\n"\n"                            <t t-if=\\"mail_tz\\">\\n"\n"                                <div style=\\"font-size: 10px; font-weight: normal\\">\\n"\n"                                    (<t t-out=\\"mail_tz\\"> اروپا/بروکسل</t>)\\n"\n"                                </div>\\n"\n"                            </t>\\n"\n"                        </t>\\n"\n"                    </div>\\n"\n"                </td>\\n"\n"                <td width=\\"20px;\\"></td>\\n"\n"                <td style=\\"padding-top: 5px;\\">\\n"\n"                    <p>\\n"\n"                        <strong>جزئیات رویداد</strong>\\n"\n"                    </p>\\n"\n"                    <ul>\\n"\n"                        <t t-if=\\"not is_html_empty(object.description)\\">\\n"\n"                            <li>توضیحات:\\n"\n"                            <t t-out=\\"object.description\\">جلسه داخلی برای بحث در مورد قیمت گذاری جدید برای محصولات و خدمات.</t></li>\\n"\n"                        </t>\\n"\n"                        <t t-if=\\"object.videocall_location\\">\\n"\n"                            <li>\\n"\n"                                نحوه پیوستن:\\n"\n"                                <t t-if=\\"object.get_base_url() in', '```html\n<div>\\n"\n"    <t t-set=\\"colors\\" t-value=\\"{\'needsAction\': \'خاکستری\', \'accepted\': \'سبز\', \'tentative\': \'#FFFF00\', \'declined\': \'قرمز\'}\\"></t>\\n"\n"    <t t-set=\\"is_online\\" t-value=\\"\'appointment_type_id\' in object and object.appointment_type_id\\"></t>\\n"\n"    <t t-set=\\"target_responsible\\" t-value=\\"object.partner_id == object.partner_id\\"></t>\\n"\n"    <t t-set=\\"target_customer\\" t-value=\\"object.partner_id == customer\\"></t>\\n"\n"    <t t-set=\\"recurrent\\" t-value=\\"object.recurrence_id and not ctx.get(\'calendar_template_ignore_recurrence\')\\"></t>\\n"\n"    <t t-set=\\"mail_tz\\" t-value=\\"object._get_mail_tz() or ctx.get(\'mail_tz\')\\"></t>\\n"\n"    <div>\\n"\n"        <table border=\\"0\\" cellpadding=\\"0\\" cellspacing=\\"0\\">\\n"\n"            <tr>\\n"\n"                <td width=\\"130px;\\" style=\\"min-width: 130px;\\">\\n"\n"                    <div style=\\"border-top-start-radius: 3px; border-top-end-radius: 3px; font-size: 12px; border-collapse: separate; text-align: center; font-weight: bold; color: #ffffff; min-height: 18px; background-color: #875A7B; border: 1px solid #875A7B;\\">\\n"\n"                        <t t-out=\\"format_datetime(dt=object.start, tz=mail_tz if not object.allday else None, dt_format=\'EEEE\', lang_code=object.env.lang) \\">سه\u200cشنبه</t>\\n"\n"                    </div>\\n"\n"                    <div style=\\"font-size: 48px; min-height: auto; font-weight: bold; text-align: center; color: #5F5F5F; background-color: #F8F8F8; border: 1px solid #875A7B;\\">\\n"\n"                        <t t-out=\\"format_datetime(dt=object.start, tz=mail_tz if not object.allday else None, dt_format=\'d\', lang_code=object.env.lang)\\">4</t>\\n"\n"                    </div>\\n"\n"                    <div style=\\"font-size: 12px; text-align: center; font-weight: bold; color: #ffffff; background-color: #875A7B;\\">\\n"\n"                        <t t-out=\\"format_datetime(dt=object.start, tz=mail_tz if not object.allday else None, dt_format=\'MMMM y\', lang_code=object.env.lang)\\">مه 2021</t>\\n"\n"                    </div>\\n"\n"                    <div style=\\"border-collapse: separate; color: #5F5F5F; text-align: center; font-size: 12px; border-bottom-end-radius: 3px; font-weight: bold; border: 1px solid #875A7B; border-bottom-start-radius: 3px;\\">\\n"\n"                        <t t-if=\\"not object.allday\\">\\n"\n"                            <div>\\n"\n"                                <t t-out=\\"format_time(time=object.start, tz=mail_tz, time_format=\'short\', lang_code=object.env.lang)\\">11:00 صبح</t>\\n"\n"                            </div>\\n"\n"                            <t t-if=\\"mail_tz\\">\\n"\n"                                <div style=\\"font-size: 10px; font-weight: normal\\">\\n"\n"                                    (<t t-out=\\"mail_tz\\"> اروپا/بروکسل</t>)\\n"\n"                                </div>\\n"\n"                            </t>\\n"\n"                        </t>\\n"\n"                    </div>\\n"\n"                </td>\\n"\n"                <td width=\\"20px;\\"></td>\\n"\n"                <td style=\\"padding-top: 5px;\\">\\n"\n"                    <p>\\n"\n"                        <strong>جزئیات رویداد</strong>\\n"\n"                    </p>\\n"\n"                    <ul>\\n"\n"                        <t t-if=\\"not is_html_empty(object.description)\\">\\n"\n"                            <li>توضیحات:\\n"\n"                            <t t-out=\\"object.description\\">جلسه داخلی برای بحث در مورد قیمت\u200cگذاری جدید برای محصولات و خدمات.</t></li>\\n"\n"                        </t>\\n"\n"                        <t t-if=\\"object.videocall_location\\">\\n"\n"                            <li>\\n"\n"                                نحوه پیوستن:\\n"\n"                                <t t-if=\\"', '"<div>\\n"\n"    <t t-set=\\"colors\\" t-value=\\"{\'needsAction\': \'grey\', \'accepted\': \'green\', \'tentative\': \'#FFFF00\', \'declined\': \'red\'}\\"></t>\\n"\n"    <t t-set=\\"is_online\\" t-value=\\"\'appointment_type_id\' in object and object.appointment_type_id\\"></t>\\n"\n"    <t t-set=\\"target_responsible\\" t-value=\\"object.partner_id == object.partner_id\\"></t>\\n"\n"    <t t-set=\\"target_customer\\" t-value=\\"object.partner_id == customer\\"></t>\\n"\n"    <t t-set=\\"recurrent\\" t-value=\\"object.recurrence_id and not ctx.get(\'calendar_template_ignore_recurrence\')\\"></t>\\n"\n"    <t t-set=\\"mail_tz\\" t-value=\\"object._get_mail_tz() or ctx.get(\'mail_tz\')\\"></t>\\n"\n"    <div>\\n"\n"        <table border=\\"0\\" cellpadding=\\"0\\" cellspacing=\\"0\\">\\n"\n"            <tr>\\n"\n"                <td width=\\"130px;\\" style=\\"min-width: 130px;\\">\\n"\n"                    <div style=\\"border-top-start-radius: 3px; border-top-end-radius: 3px; font-size: 12px; border-collapse: separate; text-align: center; font-weight: bold; color: #ffffff; min-height: 18px; background-color: #875A7B; border: 1px solid #875A7B;\\">\\n"\n"                        <t t-out=\\"format_datetime(dt=object.start, tz=mail_tz if not object.allday else None, dt_format=\'EEEE\', lang_code=object.env.lang) \\">سه شنبه</t>\\n"\n"                    </div>\\n"\n"                    <div style=\\"font-size: 48px; min-height: auto; font-weight: bold; text-align: center; color: #5F5F5F; background-color: #F8F8F8; border: 1px solid #875A7B;\\">\\n"\n"                        <t t-out=\\"format_datetime(dt=object.start, tz=mail_tz if not object.allday else None, dt_format=\'d\', lang_code=object.env.lang)\\">۴</t>\\n"\n"                    </div>\\n"\n"                    <div style=\\"font-size: 12px; text-align: center; font-weight: bold; color: #ffffff; background-color: #875A7B;\\">\\n"\n"                        <t t-out=\\"format_datetime(dt=object.start, tz=mail_tz if not object.allday else None, dt_format=\'MMMM y\', lang_code=object.env.lang)\\">مه ۲۰۲۱</t>\\n"\n"                    </div>\\n"\n"                    <div style=\\"border-collapse: separate; color: #5F5F5F; text-align: center; font-size: 12px; border-bottom-end-radius: 3px; font-weight: bold; border: 1px solid #875A7B; border-bottom-start-radius: 3px;\\">\\n"\n"                        <t t-if=\\"not object.allday\\">\\n"\n"                            <div>\\n"\n"                                <t t-out=\\"format_time(time=object.start, tz=mail_tz, time_format=\'short\', lang_code=object.env.lang)\\">۱۱:۰۰ صبح</t>\\n"\n"                            </div>\\n"\n"                            <t t-if=\\"mail_tz\\">\\n"\n"                                <div style=\\"font-size: 10px; font-weight: normal\\">\\n"\n"                                    (<t t-out=\\"mail_tz\\"> Europe/Brussels</t>)\\n"\n"                                </div>\\n"\n"                            </t>\\n"\n"                        </t>\\n"\n"                    </div>\\n"\n"                </td>\\n"\n"                <td width=\\"20px;\\"></td>\\n"\n"                <td style=\\"padding-top: 5px;\\">\\n"\n"                    <p>\\n"\n"                        <strong>جزئیات رویداد</strong>\\n"\n"                    </p>\\n"\n"                    <ul>\\n"\n"                        <t t-if=\\"not is_html_empty(object.description)\\">\\n"\n"                            <li>توضیحات:\\n"\n"                            <t t-out=\\"object.description\\">جلسه ی داخلی جهت مشاوره درباره ی قیمت گذاری های جدید برای محصولات و سرویس ها.</t></li>\\n"\n"                        </t>\\n"\n"                        <t t-if=\\"object.videocall_location\\">\\n"\n"                            <li>\\n"\n"                                چگونگی پیوستن:\\n"\n"                                <t t-if=\\"object.get_base_url() in object.videocall_location\\"> پیوستن با اودو بحث </t>\\n"\n"                                <t t-else=\\"\\"> پیوستن از طریق</t><br>\\n"\n"                                <a t-att-href=\\"object.videocall_location\\" target=\\"_blank\\" t-out=\\"object.videocall_location or \'\'\\">www.mycompany.com/calendar/join_videocall/xyz</a>\\n"\n"                            </li>\\n"\n"                        </t>\\n"\n"                        <t t-if=\\"object.location\\">\\n"\n"                            <li>محل نشست: <t t-out=\\"object.location or \'\'\\">بروکسل</t>\\n"\n"                                <a target=\\"_blank\\" t-if=\\"not is_online or is_online and object.location != object.appointment_type_id.location_id.name\\" t-attf-href=\\"http://maps.google.com/maps?oi=map&amp;q={{object.location}}\\">(مشاهده نقشه)</a>\\n"\n"                            </li>\\n"\n"                        </t>\\n"\n"                        <t t-if=\\"recurrent\\">\\n"\n"                            <li>زمان: <t t-out=\\"object.recurrence_id.get_recurrence_name()\\">هر ۱ هفته، برای ۳ رویداد</t></li>\\n"\n"                        </t>\\n"\n"                        <t t-if=\\"not object.allday and object.duration\\">\\n"\n"                            <li>مدت زمان:\\n"\n"                                <t t-out=\\"(\'%dH%02d\' % (object.duration,round(object.duration*60)%60))\\">۰:۳۰</t>\\n"\n"                            </li>\\n"\n"                        </t>\\n"\n"                    </ul>\\n"\n"                </td>\\n"\n"            </tr>\\n"\n"        </table>\\n"\n"    </div>\\n"\n"    <div class=\\"user_input\\">\\n"\n"        <hr>\\n"\n"        <p placeholder=\\"پیام خود را در اینجا وارد کنید\\"><br></p>\\n"\n"\\n"\n"    </div>\\n"\n"    <t t-if=\\"object.user_id.signature\\">\\n"\n"        <br>\\n"\n"        <t t-out=\\"object.user_id.signature or \'\'\\">--<br>ادمین میچل</t>\\n"\n"    </t>\\n"\n"</div>\\n"\n"            "']