How to Hide Scratch and Win Admin Menus

function plt_hide_scratch_and_win_menus() {
	//Hide "Scratch & Win".
	remove_menu_page('sos-scratch-and-win-0');
	//Hide "Scratch & Win → Games".
	remove_submenu_page('sos-scratch-and-win-0', 'sos-scratch-and-win-0');
	//Hide "Scratch & Win →".
	remove_submenu_page('sos-scratch-and-win-0', 'sos-scratch-and-win-1');
	//Hide "Scratch & Win →".
	remove_submenu_page('sos-scratch-and-win-0', 'sos-scratch-and-win-2');
	//Hide "Scratch & Win → Tickets".
	remove_submenu_page('sos-scratch-and-win-0', 'sos-scratch-and-win-3');
	//Hide "Scratch & Win → Statistics".
	remove_submenu_page('sos-scratch-and-win-0', 'sos-scratch-and-win-4');
}

add_action('admin_menu', 'plt_hide_scratch_and_win_menus', 11);
Where do I put this code?