B331133131323131133132233133313231333132233132313331333131232322123123121   >>    B33113313132313113313223313331323133313223313231333133313123232212312312   <<    B331133131323131133132233133313231333132233132313331333131232322123123123   >>      B331133131323131133132233133313231333132233132313331333131232322123123122   >>