const savedUser_serverId = saved_user[0].server_id;
servers.push(savedUser_serverId);
switch (savedUser_serverId) {
case 1:
servers.push(2);
servers.push(3);
break;
case 2:
servers.push(1);
servers.push(3);
break;
case 3:
servers.push(1);
servers.push(2);
break;
}